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Serta Ultimate 4-inch Visco Memory Foam Mattress Topper

Overall Rating Rating 4.5  |  5075 reviews  |  Write a review
Today $144.99
Item #: 10031883
    Enjoy a restful night's sleep with this memory foam mattress topper from Serta. Constructed of high-density memory foam, this mattress topper will cradle your body and reduce pressure points to prevent tossing and turning....more

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Sponsored Links What's This?
    Enjoy a restful night's sleep with this 4-inch memory foam mattress topper from Serta. Constructed of high-density memory foam, this mattress topper will cradle your body and reduce pressure points to prevent tossing and turning.

    • Type: Memory foam
    • Topper measures 4 inches thick
    • Materials: Viscoelastic memory foam
    • Density: 4 pounds
    • Hypoallergenic, antibacterial foam is ideal for those who suffer from allergies
    • Memory foam is resistant to dust mites and is naturally antimicrobial
    • Temperature sensitive for a custom feel
    • Simulates a floatation effect

    Dimensions:

    • Twin: 37 inches wide x 72 inches long
    • Full: 51 inches wide x 72 inches long
    • Queen: 58 inches wide x 77 inches long
    • King: 76 inches wide x 77 inches long
    • California king: 70 inches wide x 80 inches long

    This item does not come with a cover

    Memory Foam Tips:
    • Remove from packaging within 72 hours of receipt to maximize memory foam expansion.
    • This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape.
    • Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours.
    • Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product.


    Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results



Dimensions:
See above
Warranty:
3 Year
Materials:
Polyurethane
Model No:
MP13026

Features

  • Thickness
    4 Inch
  • Memory Foam Type
    Memory Foam
  • Density
    4 Pound
  • Antimicrobial
    Yes
  • Hypoallergenic
    Yes
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Showing 5 most helpful reviews on this product.

  • 5 Stars 3656
  • 4 Stars 872
  • 3 Stars 219
  • 2 Stars 137
  • 1 Stars 186

Most Helpful Reviews

  • Turns any mattress into a dream of pleasure!

    I purchased this 4" memory foam mattress topper as a last effort to find something that would help me sleep better. I have been fighting a few horrible disease's called Fibromyalgia and Rheumatoid Arthristis and Chronic Fatigue for years and have never slept through the night. I'm only 44yrs old and too young to feel so old. The first time I put on my memory foam topper, I just layed there with no pain and instant relief. I didn't even get into my pajamas; because I fell asleep within minutes and to my amazement, slept all night long in the same postion. I woke up in complete shock and actually for the first time could walk to the bathroom without feeling stiff and bouncing off my furniture to just hold me up because of the pain. There's not a prescription from any of my doctor's that could have provided me with such relief. Now my condition is getting so much better because I am actually sleeping through all four stages of sleep that your body needs to repair your muscles, ligaments, tendons, not to mention your state of well being from having a great night sleep! I highly recommend this topper to everyone, especially people who suffer from insomnia caused by pain that awakens you when ever you move at night. With this topper, I find that I do not move. This is the best investment which was so cost effective, I could have ever purchased. There's not a sleeping pill in the world that can out do this topper! Thank You Overstock for saving my life. I was at a very low time in my life from suffering such chronic pain day and night. A good nights sleep keeps pain at bay during the day. WOW...what a dream come true. Sincerely, Carolyn

    • Would you recommend this to a friend? Yes

    cjb0706 from Vero Beach, Florida,

    165Helpful
    9Not Helpful
    Flag As Inappropriate

  • I swear by this!

    I were a bit skeptical to buy this topper as I know like all of you out there, a good night sleep is priceless... was just thinking of getting rid of my mattress which is still in mid condition and got one of those Tempur Medic mattress instead...Last minutes, I have decided to try this one out first...... oh my Gosh, it was so very comfortable..& .how good was it???? I almost missed work this morning and it is just not so me to do that... My advice, spend monies to buy this first if you are thinking about replacing your mattress... it is really really Great for a fraction of what could cost you..and it is made by Serta...can't go wrong with that.. Please note of one thing, the instruction of how to open this topper was packed in the bottom of the box, so I tried to manually rolled the topper opened and Opps, it was a mistake...I did open it, but it took a lot of of me to do so.... Please do not attempt to do that, just open the topper from its wrapper and let it sit on the floor for at leasat 24hour to air out the smell, but also make it easier to roll it open later. One happy and repeat customer...

    • Would you recommend this to a friend? Yes

    lochau from Houston, Texas,

    102Helpful
    18Not Helpful
    Flag As Inappropriate

  • good for its value

    I wasnt going to review this product until I had it for a while. 1 year later, here's my review: PROS: - with memory foam pads, the thicker, the better. 4" is the thickkest ive seen available out there. - decently priced. you get what you pay for - never woke up with a bad back, also considering i sleep on my side and chest - i sleep longer CONS: - it is heat sensitive: if it's cold in the room, it's firmer, if it's hot, it's softer and it's no longer a "memory foam" but a regular foam. - with that said, the area/shape you sleep on is not really a "memory foam" because of warm body temperature - the more it is exposed to the air (especially the edges), the foam turns from white to yellow like the rest of the regular foams - it's about 2" short from regular mattress size. but i suppose that's to make room for the fitted sheet to cover the mattress and the extra 4" thick memory foam. - im about 120lbs, the firmness is perfect. but i dont know about those heavier than me, because like i said about the heat/temperature problem, you might find your self sinking down making it a bit uncomfortable in the summer.

    • Would you recommend this to a friend? Yes

    sensitivesleeper from Las Vegas,

    94Helpful
    15Not Helpful
    Flag As Inappropriate

  • Annie20

    It's more comfortable than I expected and I had a very good night's sleep, FINALLY. Good merchandise at a good price makes me a repeat customer.

    • Would you recommend this to a friend? Yes

    annie20 from Yakima, WA,

    55Helpful
    5Not Helpful
    Flag As Inappropriate

  • Sleeping much more comfortably now!

    I thought I would wait a few months before writing a review, so here it is: We really needed a new bed (ours is about 8 yrs. old), but couldn't afford to spend $1000-2000. My husband and I were waking up with sore backs every morning. I thought I would try the memory foam mattress topper first, at least to 'buy us some time'. It arrived in a rectangular box and I unfolded it and let it sit in the guest room for a day or two. Then I dragged it to our room (a bit awkward to carry, but not too bad:) and put it on our bed. We have a King size bed and it fits pretty well. I bought new deep pockets sheets at the same time and even though they don't fit all the way down to the bottom of the original mattress, we haven't had problems with them slipping off. My husband was very skeptical about the mattress topper at first, but quickly became a fan after about 2 nights. We no longer wake up with back pain. I wouldn't say it's ' like sleeping on a cloud', but it is very, very comfortable once you get used to it (after a night or 2). I have been very happy with it, especially since we don't have to buy a new bed now! I was worried about the temperature issue, but haven't noticed any problems. My husband tends to be warmer than I am and he hasn't had any issues either. I think he likes the mattress topper even more than I do! He says he sleeps better too. I have noticed that I no longer wake up several times each night to get comfortable, so that is a definite improvement. Overall, I am very happy with this mattress pad and would recommend it!

    • Would you recommend this to a friend? Yes

    mama4x1 from Park City, UT,

    74Helpful
    38Not Helpful
    Flag As Inappropriate
View All Most Helpful Reviews ›

Most Recent Reviews

  • Serta Ultimate 4-inch Visco Memory Foam Mattress T

    This is the 3rd time I have bought this product and it continues to make all the difference in the world sleeping. As we all know you cannot beat the price.

    • Would you recommend this to a friend? Yes
    Flag

    jeg87 from Arlington, VA,

    0
    0

  • Outstanding value

    Last summer, I slept on a friend's guest room memory foam mattress and could not get over how comfortable it was. I read some of the reviews on this product and thought I couldn't go wrong for the price. I was not disappointed. Infact, it's been amazing. Within two days of receiving this topper, the back problems I had been having for almost a month were completely gone. My wife was skeptical but has been very happy with it as well. This is an incredible product and outstanding value. I recommended it to my parents and a co-worker, both of whom have been extremely satisfied.

    • Would you recommend this to a friend? Yes
    Flag

    the6dowlers from Illinois,

    0
    0

  • Wonderful bed topper!

    I had been considering buying a memory foam mattress, but after some other unexpected expenses realized it would be too expensive. So i ordered the Serta Ultimate 4-inch memory foam mattress topper and it is fantastic. I am now sleeping better than I ever have before and wake up without the usual aches and pains I had been having. Saved me hundreds of dollars or more with the same desired result! Highly recommended for anyone who wants to sleep comfortably all night long in any position!

    • Would you recommend this to a friend? Yes
    Flag

    mauigirl59 from Bloomfield, NJ,

    0
    0

  • Great Product

    We purchased a new mattress, but didn't want a memory foam topper on the mattress itself, as we had read poor reviews. We have been very pleased with this topper. It makes the bed very comfortable! My one complaint is that you need to air it out for several days before sleeping on it, as it is quite smelly.

    • Would you recommend this to a friend? Yes
    Flag

    mkellen from NYC,

    0
    0

  • Simply excellent.

    The reviews from others saying how great this mattress topper is were dead on! We love it and haven't had a single ache or pain since the very first night. Both husband and I now sleep late, whereas I always got up before 4:00 am – so, while that may not be a good thing where work is concerned, it is a definite indication of how good you'll sleep on this mattress.

    • Would you recommend this to a friend? Yes
    Flag

    emgmo from Missouri,

    0
    0
View All Most Recent Reviews ›

Product Q&A

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Is the smell from the topper hazardous/toxic? Is it safe for pregnant women to sleep on? sue199 on May 21, 2013
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We never had the smell that others reported. dwcoats1999 on May 22, 2013
 
Hi sue199, Please continue to air the foam outside of its cover (if it includes one), either outside or in a room with an open window. The foam needs fresh air in order to air out. The odor is a "fresh foam" odor that is not harmful. The odor should have aired out within 72 hours from when unpacked; however, sometimes it may take 1-2 weeks. You may also spray the foam lightly with Febreze or Lysol. Please return these products to the store of purchase if the smell has not dissipated. Memory foam is made from 100% polyurethane. Polyurethane Foam is an inert, inactive product that poses no health hazard unless burned. Our foam does not contain latex, formaldehyde, or PBDE's. Foam has a distinct odor. One can become sensitive to the odor, just like one can become sensitive to perfume or cologne. Foam is non-allergenic; however, should you develop sensitivity in any way, discontinue use of the product. Thanks for your inquiry, hope this helps! overstockcustomercare1 on May 22, 2013
 
I didn't notice any smell at all. I had previously had a topper that did have a funny smell at first; this one did not. I did air it out overnight before putting it on the bed. mauigirl59 on May 23, 2013
 
 
Is the smell from the topper hazardous? Is it safe for pregnant women to sleep on? sue199 on May 21, 2013
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Our topper really smelled for a few days. If I were pregnant, I would not sleep on it until the smell was completely gone. Some people don't seem to have an issue with the smell, but we did. michele41 on May 21, 2013
 
 
Will this work and look normal on top of a normal inner spring mattress? loganlaporte on May 12, 2013
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yes sinniemae on May 14, 2013
 
It will with no problem at all. Providing your inner spring mattress is still in good shape, if it sages the so will the topper. wardragon on May 14, 2013
 
Yes, but you will need extra deep fitted sheets donsginny on May 17, 2013
 
 
Hello: Can I use this atop an existing memory-foam mattress that has developed sags and impressions where we sleep? Will the topper fill the depressions or mold to them? vadeltachi on May 12, 2013
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Hello vadeltachi, I definitely think this topper could help your situation; however the topper will likely conform to the indentations in your mattress depending on how deep they are. Thank you for shopping with us. overstockcustomercare1 on May 14, 2013
 
 
Would you please account for the weight differences? Below overstock specialist states: "Thank you for your inquiry. The Box Dimensions are Height: 12 Width: 12 Length: 36. The weight ranges depending what size your request. The weights are 25, 30, 46, and 58 pounds respectively. (Cal and king weigh the same)". According to this a full is only five pounds more than an individual, but a queen (which is really only 6 inches bigger than a full) is 14 pounds more than a full? Thanks berynice on May 11, 2013
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Hello berynice, unfortunately we do not have the exact weight of the item available. The weights provided in our previous response are shipping weights. The shipping weight can vary slightly from the actual weight. I apologize for any confusion this may have caused. Thank you for shopping with us. overstockcustomercare1 on May 14, 2013
 
 
what is the firmness of this topper? amanmh on Apr 29, 2013
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That's a hard question to answer since it is a memory foam. I think the best answer is that the firmness level is totally dependent of how much weight you're putting on it. I'm a pretty big guy, compressing the foam 2-3 inches so it's fairly firm at that point. If you're a smaller, lighter person then I think it would be significantly less firm since you're not compressing it nearly as much. That said, I bought mine in a last attempt to not replace my mattress because it's too firm for me. After about a week now I think it's a lot better, though I'm getting used to foam aspect since I've always had a normal mattress. belralph on Apr 30, 2013
 
Hello amanmh, The Serta Ultimate Topper is considered to be medium firm. Please let us know if you have any further questions. Thank you for shopping with us. overstockcustomercare1 on May 1, 2013
 
Medium firm anupsgr153 on May 2, 2013
 
I would say medium firm as well, but as stated depending on your weight. bnoelle333 on May 3, 2013
 
I agree with @belralph, the mattress is medium but your weight will have a lot to do with it as well. I am not a small person and have been using memory foam mattresses and latex mattresses for a few years now just to relieve pressure point on my body. I bought a $2000.00 mattress and I also bought this mattress topper for my guests bed. I actually prefer sleeping on this topper because it relieves pressure better but I do sink into it a bit and that takes a little getting used to but the comfort of getting a good night sleep is worth it. appgrab on May 7, 2013
 
I weigh 165 pounds and am 5'6". This topper cradles my body nicely. I would put it on the soft side, but not too soft. After looking I found the 4 pound foam is denser than others. I'm happy with this one. desperado83706 on May 12, 2013
 
I weigh 250 so I do sink into it pretty much but I have not bottomed out and still get relief from pressure points. wardragon on May 14, 2013
 
 
is there a waranty for the foam topper gstarkey on Apr 23, 2013
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Thank you gstarkey for your interest in the Serta Ultimate 4-inch Visco Memory Foam Mattress Topper. There is a 3 year warranty on this item. Thank you for shopping with us! overstockcustomercare1 on Apr 29, 2013
 
Good that it has a 3 year waranty. anupsgr153 on May 2, 2013
 
how do i use the warranty? jk8023 on May 10, 2013
 
 
My mattress is a little larger than a full @ 53 x 78! Any recommendations? Thanks kettlebellrick66 on Apr 4, 2013
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This is a very nice topper. It is a great quality and has held up very well. Try a queen size and use a regular scissor to size it down. buddy1024 on Apr 5, 2013
 
 
what are the dimensions and shipping weight of Serta Ultimate 4-inch Visco Memory Foam Mattress Topper? danny1951 on Mar 24, 2013
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Thank you for your inquiry. The Box Dimensions are Height: 12 Width: 12 Length: 36. The weight ranges depending what size your request. The weights are 25, 30, 46, and 58 pounds respectively. (Cal and king weigh the same) overstockcustomercare1 on Mar 26, 2013
 
Thirty (30) pounds! Full size. Difficult to handle, have to have at Least 2 people, both to unwrap and move! Cecy from DC cecyivie on Apr 5, 2013
 
 
Will a person on the heavier side (250) flatten their section of the topper? Im wanting to put this on my very uncomfortable sleep number bed as cussioning. is this reccomended? almimo on Mar 13, 2013
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Go for it, I'm 240 lbs. and the memory foam bounces back. It will take years to wear a hole in this, but I've found by using memory foam toppers that even after several years they still give great service and comfort. jtmackeral on Mar 13, 2013
 
you will not... this is a great topper. Mine is over 3 years old, and still is great. homenow on Mar 19, 2013
 
My husband is 230 and he has no problem on his side. Just rotate the pad to get even wear. You will be fine. It bounces right back. crowley4 on Mar 21, 2013
 
My husband doesn't flatten his side out - he loves it! I would go for it! breyn3 on Mar 21, 2013
 
No problems... My husband is 275 lbs. Bounces back and he is super comfortable. We use the 4 inch mattress topper. Good luck! windwalkersmom on Mar 26, 2013
 
Did a little research before buying this topper and it met the recommendations from Consumer Reports and a couple of sites. My mother is well on 200 lbs and it 7540linn on Apr 2, 2013
 
Your weight will be dispersed and I doubt seriously if it would flatten. The only problem I would imagine with this topper is while you are sleeping the mattress will contour to your body and it may sink enough to make it harder to turn over or move around. olivia30 on Apr 3, 2013
 
I use the 4" mattress topper and I am 250lbs and have no problem with it returning to it's shape. wardragon on May 14, 2013
 
 
If this topper is made from visco memory foam, why does it say polyurethane under materials? I want a 100% visco topper and would like to order this particular topper now, but not until I know the true material. Thanks! lmp1084 on Mar 9, 2013
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According to 'Ask Andy' "Memory foam is polyurethane with additional chemicals increasing its viscosity and density. It is often referred to as "visco-elastic" polyurethane foam, or low-resilience polyurethane foam" Thank you for your interest. overstockcustomercare1 on Mar 10, 2013
 
I have had this topper for almost one year and it is still like new. It is defintely memory foam as I have tried numerous other toppers prior to this one. My 3 kids loved my topper so much I got one for each of them. I would definitely recommend this product to anyone. I have had a polyurethane topper before, this product is high quality memory foam. Very supportive but not ridged or to firm. I weigh 195 lbs and am 5'11" with absolutely no buyers remorse yovs on Mar 22, 2013
 
 
If we do not like this item, how are we supposed to return it? Based on the reviews, people say it is shipped tightly wrapped and once opened is impossible to get back in the box. I just worry because I am hot blooded and don't want to waste money on something that may be too hot for me. Thanks! choward702 on Mar 6, 2013
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I absolutely love mine and it keeps me way more cool at night then my regular pillowtop. It does come very tightly wrapped i think if you return it you will need a bigger box redroany on Mar 9, 2013
 
I had sleepless nights and aches/pains. It's not significantly hotter than a regular mattress. A lighter blanket, a flat sheet, lowering the thermostat on the AC or flipping on a ceiling fan should take care of this. Besides, the improved quality of sleep will more than outweigh the added warmth. I bought another for the guest room. mcrms on Mar 15, 2013
 
We apologize for the delay in answering your question. Memory foam toppers are returnable even after opening. If a return is desired, contact our Customer Care Department to set up a return. They will instruct you how to package for return at that time. Thank you for your interest. overstockcustomercare1 on Mar 15, 2013
 
Good luck returning it! Don't worry, you won't want to! funguyhou on Mar 18, 2013
 
Trust me, you won't want to return it! Even if you did want to return it, it would be like stuffing an elephant into a cardboard box! olivia30 on Apr 3, 2013
 
 
I can't find a cover that would fit this mattress pad. Can someone point me in the right direction? I ordered a full sized one. saveriomastrianni on Feb 28, 2013
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I have the queen size serta memory foam and the king one for my son. Both are the same as described here. I ordered the beauty rest cotton mattress cover they sell here on overstock.com it has deep stretchy sides, it covers wonderfully, fits great and stays in place. Also easy to wash up and dry. dkhpne on Mar 1, 2013
 
could you post a link to that? saveriomastrianni on Mar 2, 2013
 
Thank you for your inquiry. We suggest item number 11276458. The link is : http://www.overstock.com/Bedding-Bath/Beautyrest-Ultimate-Protection-Mattress-Pad/3152990/product.html. overstockcustomercare1 on Mar 5, 2013
 
A bit of searching online and I found one that was made for a 4" memory foam topper and it works great. Worth the extra few bucks to protect my investment. wardragon on May 14, 2013
 
 
Can I order this product and unpack it from the shipping wrapping in 3 months? I do not need it until then. Thank You djudyb on Feb 23, 2013
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I don't know. I opened mine right away. I would imagine these sit in warehouses for a long time before they are shipped. edibs on Feb 25, 2013
 
Thank you for your question. Yes you can keep this boxed for 3 months, however our standard return policy is 30 days so we would recommend that you inspect the item as soon as possible after delivery. overstockcustomercare1 on Mar 1, 2013
 
I'm sure that won't be an issue. It's wrapped very tightly. mcrms on Mar 15, 2013
 
 
What are shipping dimensions and weight of queen size? tk251 on Feb 4, 2013
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I do not recall shipping dimension and weight box was a rectangle about 3 feet high by 14 wide and was heavy. angelalbanese on Feb 4, 2013
 
Thank you for your inquiry. The box dimensions for this unit are Height: 12 Width: 12 Length: 36. At the time of shipping the item weighs 45 pounds. overstockcustomercare1 on Feb 21, 2013
 
About 48" high and about 30"x30". It weighs around 40-50 lbs I'm guessing. mcrms on Mar 15, 2013
 
 
will this topper slide very much on my mattress or will it stay in place. kiplee on Jan 29, 2013
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This topper stays in place on my king bed. Its pretty heavy and thick desertfire on Jan 29, 2013
 
No. It will not slide. It's great! mcrms on Mar 15, 2013
 
Zero slippage for my king topper which I had owned for almost 1 year. yovs on Mar 22, 2013
 
Don't worry, the topper will stay in place. lexihexi on Mar 26, 2013
 
No it will not sliode bonnyclaire on Apr 17, 2013
 
It will stay in place. Mine moves a bit but that is because if the cover that I added to it but it is easy to slide right back into place when I change the sheets. wardragon on May 14, 2013
 
 
is this a firm topper kiplee on Jan 28, 2013
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yes, but not too firm desertfire on Jan 29, 2013
 
No, this is not firm at all. I would suspect it is well below 10 load deflection rating. If you want firm, find a 12-16 load deflection rating and pass on this one. prairiepoint on Mar 12, 2013
 
This topper is soft enough to conform to your body and firm enough to keep you from sinking into it. I weigh 160 lbs. also, it does not create pressure points. It's a great topper. I love mine. Both of them. mcrms on Mar 15, 2013
 
Yes - it's firmer, but you will sink down into it and it begins to feel softer. I do not like firm beds at all and I'm quite happy with this product! breyn3 on Mar 21, 2013
 
I have owned this topper for 1 year and have experienced the following; definitely firmer in the cool months of the year. I agree with one of the responses below in that his topper is soft enough to conform to your body but supportive enough to relieve any back aches you may have. If my back is bothering me during the day I will lay on the topper for 15 to 30 minutes and the pain will be almost gone yovs on Mar 22, 2013
 
 
is the pad washable skwilliamson on Jan 28, 2013
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No, its much to big and thick. desertfire on Jan 29, 2013
 
Thank you for your inquiry, Memory foam is not machine washable, however memory foam is hypoallergenic, resistant to dust mites and is naturally antimicrobial. overstockcustomercare1 on Feb 5, 2013
 
No. Cover it with a good mattress protector that you can remove and wash. mcrms on Mar 15, 2013
 
 
will my queen size fittied sheets fit over it and the mattress. kiplee on Jan 28, 2013
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The deep pocket sheets will work. O.com has sheets with a 24" deep pocket; deeper than I've seen in retail stores. shkayaker on Jan 28, 2013
 
I used 16" deep pocket sheets and had no trouble at all with the elastic going all around the mattress and topper. wardragon on May 14, 2013
 
 
This product says that it is made of Viscoelastic memory foam, but a little further down it says the material is Polyurethane. I would just like to know which one it actually is made out of. mfcocho on Jan 24, 2013
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Hello, I'm sorry this is made from Viscoelastic memory foam. overstockcustomercare1 on Jan 25, 2013
 
 
We have an odd sized bed. Full is too narrow and queen to wide. Can we cut the Memory Foam Mattress Topper be cut to size? With a sharp razor knife perhaps? ricvt on Jan 22, 2013
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It would be difficult, but could be done. Maybe even by using a large pair of sharpened scissors and compressing the area to be trimmed. Love the topper. Worth it if you can get it to fit correctly. jennifer952 on Jan 25, 2013
 
We cut down a memory foam topper given to us. The topper was a king and we had a queen. we made memory foam pillows out of the excess!! Love them!! I just used a sharp knife and went slow emmons5 on Feb 17, 2013
 
thanx for your input. we did cut it and things worked out fine with ours also ricvt on Feb 17, 2013
 
 
What does 4 lb. density mean. Is that per cu. ft. or what. How can a twin size and a king size weigh the same 45 lb. Just wondering. makemine2go on Jan 10, 2013
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The higher the density the nicer the foam piece. Yes it is per cubic foot. They do not weigh the same. A king is 45 ', a twin is 24'. overstockcustomercare1 on Jan 10, 2013
 
 
Do you have to wait 48 hours before sleeping on the pad? I just got mine today & already put it on my bed....Is there any harm in sleeping on it before 48 hours have passed? mom2lola on Jan 8, 2013
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No, I opened it up and let it air out for a day and it was fine to sleep on. I put a good quality mattress cover over it to avoid any smell getting through; also to keep any heat build-up from the memory foam. donsginny on Jan 9, 2013
 
 
How do you recommend using the topper......Directly on your mattress and then covered with a mattress pad? OR do you cover your existing mattress with a mattress pad and then lay the mattress topper on that followed by your fitted bottom sheet? cardinalcrazed on Jan 6, 2013
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Directly on the mattress and then a mattress pad. slandry58 on Jan 6, 2013
 
 
Hi, I need to know the exact box size(dimensions) and weight for the king size mattress topper. I am planning to take it to the flight and need exact details. I do see couple of more people have asked the similar questions but I am not sure if 45lbs as mentioned by you is for Twin or King. Please respond ASAP. Also, add this information in the product description. pankajg on Jan 2, 2013
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The box dimensions are: Height: 12 Width: 12 Length: 36 and 45 lbs is for the King size. overstockcustomercare1 on Jan 2, 2013
 
 
I understand this memory foam topper is a Serta brand, but who is the manufacturer of this product. I just spoke to Serta and they stated a licensed manufacturing companies made this product for them. Who is the manufacturer? milklavar on Dec 17, 2012
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Sorry unfortunately we are unable to disclose the manufacturer of some of our products; however, Overstock.com stands behind every product we sell. When necessary we can contact suppliers if a product issue arises. overstockcustomercare1 on Dec 17, 2012
 
Sleep Innovations jmoral87 on Jan 7, 2013
 
 
Can a mattress cover heating pad be used with this memory foam topper? jd1301 on Dec 5, 2012
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Yes, a heated mattress pad/blanket can be used with all of the products by this manufacturer as long as there are no frayed wires and the item is UL approved. overstockcustomercare1 on Dec 5, 2012
 
 
The 3 inch says all of the topper is memory foam. How much of this 4 inch is memory foam? jenbme on Nov 28, 2012
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This is a 4 inch memory foam topper. This is all memory foam. overstockcustomercare1 on Nov 28, 2012
 
 
Can you tell me the shipping weight for this topper in full size? momoch1 on Nov 28, 2012
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That is 45 pounds. overstockcustomercare1 on Nov 28, 2012
 
 
I see from a previous question that this topper is not flame retardant. However, is it considered flammable, and is there a flammability rating for this product? tas5 on Nov 27, 2012
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I am sorry but we do not have the flammability rating overstockcustomercare1 on Nov 28, 2012
 
 
Does this mattress topper have flame retardants? dananap on Nov 23, 2012
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No, this topper is not treated with a flame retardant. overstockcustomercare1 on Nov 26, 2012
 
 
What is the ILD (indentation load deflection) of this product? dnjkeck on Oct 25, 2012
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The ILD of the Serta Ultimate topper is 10-13. overstockcustomercare1 on Oct 25, 2012
 
 
Can you tell me the packed dimensions of this california king size product and the weight? cjh2401 on Sep 30, 2012
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This item is 45 pounds. Height: 12 Width: 12 Length: 36 overstockcustomercare1 on Oct 1, 2012
 
 
does this need a cover? jmfdm on Sep 2, 2012
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It does not require one . However if you wish to protect the foam and keep it clean a cover is advisable. I actually just use an elastic skirted mattress pad like Item #: 11756722 . It protects the foam and holds it in place. overstockcustomercare1 on Sep 4, 2012
 
 
I want to check this item in its packaging on a flight. I need to know the dimensions of the outside packaging / box and the weight to see if it is possible. Please answer ASAP. Flight leaves next weekend. Thank you! katj23 on Aug 12, 2012
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The shipping package is 36 in L x 12 in W x 14 in H. Also the ship weight is 45 pounds. overstockcustomercare1 on Aug 13, 2012
 
 
Can the Serta Ultimate 4-inch memory foam topper be cut to make two foam toppers? If so, what is the best way to cut it?  on Aug 12, 2012
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We do not recommend cutting this item, it is not meant to be cut. If item is cut, it will become non returnable. overstockcustomercare1 on Aug 13, 2012
 
We are thinking of getting an extra memory foam topper and cutting to use as dog bed inserts. The best way I have found to cut foam of this type is to use an electric knife (aka turkey knife) and doing it slow, letting the knife work it's way through it for a clean cut. gunguy70 on Oct 14, 2012
 
Foam of this type, it's best and easiest to use an electric knife (aka turkey knife) and go slow, letting the knife work it's way through for a clean cut. We are going to buy a second one of these toppers and cut it to make inserts for our dog beds also. gunguy70 on Oct 14, 2012
 
And I agree. Electric knife works great. Just remember that if there is a warranty, cutting the topper will void it. overstockcustomercare1 on Oct 15, 2012
 
 
What company makes this for serta (manufacturer)? Is it made in the US? bfuchs on Jul 30, 2012
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The brand is Serta and the product is made in the US. overstockcustomercare1 on Aug 1, 2012
 
 
The warnings (on your site) say open within 72 hours of receipt. But depending on shipping this may well spend more than 72 hours in transit. What are the consequences of not opening for e.g. 1 week after receipt?  on Jul 26, 2012
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Thank you for your interest. There is no harm to this item if opened after 72 hours. This is the time frame for the foam mattress to FULLY expand. Memory foam sites only suggest 72 hours, there is not a "warning". Please feel free to contact us again with any further questions. overstockcustomercare1 on Jul 30, 2012
 
 
Can you tell me the >packed< dimensions of this Queen-sized product? I am interested in transporting it before opening and need to know its packed dimensions.  on Jul 26, 2012
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Height: 12 Width: 12 Length: 36 inches. overstockcustomercare1 on Jul 27, 2012
 
 
what is the firmness of this topper? fgary on Jul 23, 2012
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This topper is manufactured with a 4lb density so it will be on the firmer side with a high level of support. overstockcustomercare1 on Jul 27, 2012
 
 
Is the memory foam in this topper made in the USA? c130flyer on Jul 4, 2012
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Yes, this item is made in the US. overstockcustomercare1 on Jul 9, 2012
 
 
What is the density on this product.? rhondaray on Jun 26, 2012
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Density: 4 pounds overstockcustomercare1 on Jun 29, 2012
 
This topper is manufactured with a 4lb density so it will be on the firmer side with a high level of support. overstockcustomercare1 on Jul 27, 2012
 
 
I need a 4" -- 5lbs high density memory foam mattress topper. The density is very important due to hip problems. Does this product fit that description? I saw high density, but it didn't say how much. rhondaray on Jun 26, 2012
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Density: 4 pounds, Topper measures 4 inches thick. overstockcustomercare1 on Jun 29, 2012
 
 
What type of cover is best for memory foam mattress topper?  on Jun 20, 2012
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Any cover would work well. Cotton is a favorite. overstockcustomercare1 on Jun 20, 2012
 
 
Can I purchase a cover for this product?  on Jun 10, 2012
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Yes we have a selection of covers available please use the following link; http://goo.gl/78ZTU overstockcustomercare1 on Jun 12, 2012
 
The only covers offered on the link below are regular mattress protectors. For example bed bug, allergy and waterproof protection for full thickness mattresses. byrsho on Jun 15, 2012
 
 
Will this work on a pillow top mattress? inlv on Jun 8, 2012
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Yes it will. overstockcustomercare1 on Jun 11, 2012
 
 
Can you tell me the approx weight of this product...? chilu on May 25, 2012
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This item weighs appox. 45 pounds. overstockcustomercare1 on May 31, 2012
 
 
What is the difference between the ulta 4 inch memory form Serta, and the rejuvenator 4 inch Sertal memory form.  on May 13, 2012
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The density is different. It is also listed under each items product details. overstockcustomercare1 on May 15, 2012
 
 
What is the firmness of this topper? mikedm1989 on Apr 21, 2012
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The firmness is rated at 12 which would indicate a medium firmness. For more info on Foam Mattress Toppers, please refer to http://www.overstock.com/guides/how-to-compare-memory-foam-mattress-toppers overstockcustomercare1 on Apr 24, 2012
 
 
Serta's describes a similarly named product as having a "2-inch pillow-top layer of fiberfill" with a "2-inch layer of premium memory foam" beneath that. Does this product actually have 4 full inches of pure memory foam, or is there a non-memory foam layer?  on Apr 10, 2012
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This particular item would have 4 full inches of memory foam. The product you are referring to, we believe, is the Serta Rejuvenator Dual-layer 4-inch Memory Foam Mattress Topper. You can find this item under item number 11397732. overstockcustomercare1 on Apr 10, 2012
 
 
What is the length of the Warrenty for the Serta Ultimate topper Item # 10031883? buyer4serta on Apr 1, 2012
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This has a 3 year warranty. overstockcustomercare1 on Apr 4, 2012
 
 
what is the measurement for the king size? 97148cathouse on Mar 29, 2012
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The dimensions for a king are: 76 inches wide x 77 inches long. overstockcustomercare1 on Apr 5, 2012
 
 
what is the measurement for king size 97148cathouse on Mar 29, 2012
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The dimensions for a king are: 76 inches wide x 77 inches long overstockcustomercare1 on Mar 30, 2012
 
 
What is the difference between the Serta Ultimate 4inch memory foam topper and then the Serta 4inch memory foam topper with contour pillows? kristy27 on Mar 22, 2012
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I am very sorry. I do not have the specific item number you are comparing this item to. In regards to memory foam, you will always want to look at the density which is measuring how thick of foam the item is. Just by the product name, the difference is going to be that one has contour pillows and the other doesn't. overstockcustomercare1 on Mar 26, 2012
 
 
It says in the instructions that it is all right to sleep on it while it continues to expand. How long should I let it air out before putting it on my bed?  on Feb 24, 2012
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48 hours is the suggested timeframe. overstockcustomercare1 on Feb 27, 2012
 
 
What is the difference between the Serta Ultimate 4inch memory foam topper and the Serta 4inch Memory Foam mattress?? Thanks!  on Feb 23, 2012
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The mattress is an actual mattress that can be used by itself. The mattress topper needs to be put on top of an actual mattress. overstockcustomercare1 on Feb 28, 2012
 
The mattress is an actual mattress that can be used by itself. The mattress topper needs to be put on top of an actual mattress. overstockcustomercare1 on Feb 28, 2012
 
 
Is there a cover or pad that is recommended to go with the Serta 4 inch ultimate memory foam topper to protect it?  on Feb 22, 2012
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I'm sorry to say this item won't come with a cover nor is one particularly recommended for this item. But you can view our full selection of covers by searching "Memory Foam Mattress Topper Cover" overstockcustomercare1 on Feb 23, 2012
 
 
what is the difference between the Serta Ultimate 4 inch memory foam mattress topper and the Serta Rejeuvantor 4 inch memory foat mattress topper?  on Jan 27, 2012
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The ultimate 4" topper is a 4 inches of memory foam, and the Rejuvenator 4" topper is 1.5" of Memory foam, with a 2.5" layer of base foam. overstockcustomercare1 on Jan 30, 2012
 
 
What is the warranty period?  on Jan 14, 2012
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The Serta Ultimate 4-inch Memory Foam Mattress Topper has a 3 Year warranty. overstockcustomercare1 on Jan 17, 2012
 
 
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