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Serta Memory Foam 3-inch Mattress Topper

by Serta
Sale Starts at: $125.99
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ITEM# 1138213
Included Warranty: 1 Year Limited -- Manufacturer
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    ITEM#: 1138213

    This Serta memory foam 3-inch mattress topper makes every night'ssleep as relaxing as it can be. Designed to adapt to your bodyshape, and made from antimicrobial and hypoallergenic memory foam,this mattress topper encourages restful and healthy sleep.High-quality materials used in its construction conform to yourbody shape and provide the support you need to wake up refreshed.

    • Assembled in the USA
    • 3-inch premium memory foam
    • Optimal balance of comfort and support
    • Relieves pressure points for less tossing and turning
    • Adapts to your body for pain-free, deep sleep
    • Improves circulation
    • Durable, holds its shape
    • Extends the life of your mattress

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

      Memory Foam Tips:
    • Remove from packaging within 72 hours of receipt to maximize memory foam expansion
    • This product arrives tightly packed in a box sized to be portable; once you unwrap it, you can sleep on it the same night, although it may take 48 hours to return fully to its original shape.
    • Memory foam is inherently comfortable and supportive, no matter how firm it feels; similar items can vary in firmness due to the nature of the foam
    • Product is vacuum sealed at the factory for efficient shipping; vacuum sealing sometimes traps odors, but once opened, a few hours of airing will usually remove the odor
    • 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 everyitem is unique. Please be advised that even similar products mayproduce different firmness results.

    Once opened this product is non-returnable.

    Click here to view mattress topper buyingguide.


    Type Flat Topper, Mattress Topper
    Thickness 3 Inch
    Memory Foam Type Memory Foam
    Density 3.5 Pound
    Firmness Medium
    Care Instruction Spot Clean
    Product Features Antimicrobial, Hypoallergenic
    Dimensions See Above
    Warranty 1 Year Limited -- Manufacturer
    Model Number MP12918
    Country of Origin United States

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Most Recent

    • Very Satisfied
      Verified Purchase

      We recently downsized from a 4300sf house to a 1500 sf house. Our master bedroom couldn't accommodate our expensive King mattress so we used a queen mattress that was originally for a guest bedroom. I had no idea how bad this mattress was until we started sleeping on it every night. We really didn't want to spring for the cost of a new high-quality mattress for now so I started researching memory foam toppers. After a LOT of research I decided on this one. We've been sleeping on this topper for 3 weeks and are very satisfied. There was NO odor upon opening as there is with some toppers. So far, the topper is keeping it's shape well. It contours nicely to the body and offers great support. I also haven't noticed the heat element to be much of a factor. Some memory foam mattresses and toppers tend to hold body heat but I haven't found this to be much of a problem so far and I live in Florida. We do run our air at about 68 during the night though. I think you will be very satisfied with this topper.

      Read More
    • This Topper Lasted 5 Years
      Verified Purchase

      I came back to Overstock to see if they still had this topper. They do!!! We purchased this topper in 2011. It has been wonderful. I have Sciatica and a slipped disc. This topper has relieved so much of the pain. After traveling we always look forward to getting back to our bed. I am so glad it is still available to purchase.

      Read More
    • Makes your mattress a pillow top
      Verified Purchase

      Put this on my new "firm" mattress. Made it like a pillow top, for half the price. This is my second foam pad, I just wish they lasted more than about 3 years.

      Read More
    • Amazing
      Verified Purchase

      It's super comfy and works great

      Read More
    • Phyllis
      Verified Purchase

      Great comfort at a great price!

      Read More
    • Most Helpful

      Verified Purchase

      IF THIS POST IS TOO LONG, SIMPLY READ THIS FIRST PORTION:IMPORTANT INFORMATION:A mattress of 3? thickness with 3lb density is wonderful for light-average individuals and will provide the comfort/support needed (approx 100-150lbs).A mattress of 3? thickness with 4lb density is ideal for light ? above average individuals, 100-200lbs.A mattress of 4? thickness with 3lb density is ONLY suitable for light individuals, or those who require a very soft mattress. If you are over 150lbs you will begin to lose needed support. If you are over 200lbs this will not provide you with the support you require and may not be appropriate for you.A mattress of 4? thickness with 4lb density is suitable for average ? husky individuals, 150-250 lbs. The extra inch (over 3?) will give you the extra needed cushion so that you don?t sink straight through the mattress and the 4lb density will provide you with the much needed support. </BR> ------------------------------------------------------ I spent a great deal of time doing research on memory foam toppers before deciding to make a purchase. I'm a very meticulous person and I like to evaluate all of my options before selecting an item, specially one over a certain price, and if I would consider it a luxury item.First off, I want to say that I have nothing but praise for this memory foam, and I will attempt to aid any person reading this in deciding whether or not this is the correct item for them.When looking at memory toppers, if you are looking for both comfort AND support, then you should automatically eliminate anything with a depth of 2.5" or lower and 5.5" and higher. (Do not choose 2.5 < or > 5.5).A thin mattress topper of below 2.5" may provide you with a comfortable feeling, but it will not provide you with the actual support you need, if you are only looking for comfort, and not physical benefit/support, then below 2.5" is for you. One caveat to this is if this mattress topper is intended for a child or very light individual, they will depress the visco-elastic material less then a (older) teenager or full grown adult, in that circumstance a mattress topper of 2.5" will be supportive/beneficial.A thick mattress topper at/over 5.5" will be quite deep and you will find that you sink into the mattress (unless you are a child or an extremely light person, below or at 100 pounds, at which point your body will not sink, but you still will not receive the appropriate support for your body). For an average weight adult, you will not find the comfort you want as your movements will be restricted and support will now become uneven as the heavier parts of your body will sink too low and you will be unable to achieve the spinal/body support that is required for a healthy nights rest.------------------------------------------------------The optimal range for thickness of a memory foam mattress is 3? - 4". This range will accommodate the standard adult build (greater then 100lbs and less then 250lbs or approximately 45kg ? 115kg, these figures are products of my own analysis and consumer reports).-If you are a light-average build, 100 ? 200 pounds, you will likely find the comfort/support you require from a 3? thick topper.-If you are average-husky, 150-250 pounds, then you should review a 4? topper to accommodate for ?sinking? into the topper.There is an overlap of 50 pounds in the weight range(s), this is on purpose as you must consider that this topper may not be used by only you, but a significant other as well.*I personally weigh 175lbs, whereas my fiancée rings in between 100-108lbs (please don?t tell her I posted her weight, hahaha). We found that the 3? topper provided excellent support/comfort for our weight ranges and have had nothing but approving responses from friends/families over the comfort of our mattress.---------------------------------------------------------Density is the second factor you must consider.3lb and 4lb is optimal density for the average consumer, someone weighting 100 ? 250 lbs and the density you require will differ based on size, obviously, the more you weigh the greater the density you will need.Avoid exceeding 5lb density as you will begin to sacrifice comfort in the memory foam topper. 5lb density is suitable for husky ? ?large? build individuals 250+ lbs, you would also look at a thicker mattress 4-5? in that weight range.---------------------------------------------------------Brand names: They actually matter for this product! Non-brand name foam mattresses have an indeterminable length of usability for their product. After reviewing an incredible amount of products from different suppliers I have found some of these products are meant to only last 1 ? 2 years, while others can last 5, 10, or 15 years. More often then not, the name brand products last longer. is fortunate that it has a large selection of quality toppers.----------------------------------------------------------Heat Distribution: As this mattress is not a ?vented? mattress it will trap heat a little more then an ordinary mattress topper. I have been using this on warm nights and have not found any discomfort from this small amount of added heat, in fact, as the mattress is able to retain my heat, it softens up a little more the longer I am resting on it, making my rest more on more comfortable as I lay there.----------------------------------------------------------If your partner happens to be a wrestles individual or someone who practically jumps into bed at night, then this mattress topper will help reduce the vibrations you feel and will allow you to sleep better without being disturbed. I speak as a perpetrator of literally ?jumping? into bed every night.-----------------------------------------------------------Washing/Cleaning:Good luck. Don?t get it dirty in the first place! Use a damp rag to wipe off any spills that may get into it. Never lay it directly on your floor (especially carpet), it will grab EVERY piece of dirt/filth there is and you will NEVER get it out.?oops------------------------------------------------------------------Personal Opinion:Overall I couldn?t be happier with my purchase. I haven?t slept this well in years! I have been having a very bad problem with being unable to wake up in the morning for the past few years. I have 3 alarm clocks (yes, 3 individual alarm clocks, 2 of them with 2 separate alarms, so 5 alarms), my cell phone with 3 alarms, and my computer with a morning alarm. In total, 9 alarms go off in the morning, and I have a tendancy of sleeping through ALL of them, even when they are at full blast. I had not been getting a real rest when I slept! To make matters worse, my partner moves around a lot, as such, I haven?t been getting a really good deep sleep in years, with minimal REM cycles?(dreams)?I have been exhausted constantly. All of that changed when I slept on this topper. For the first time in 4 years I am having vivid dreams that I remember when I wake up, this is an indication of a deep sleep, which your body/brain needs to recharge! Additionally, I wake up immediately at the sound of just one alarm at half volume! As I?m no longer thoroughly exhausted I can actually get up in mornings and have been making it on time to all of my appointments, and scheduled events! I can?t believe how much the memory foam changed my life!Do yourself a favor and BUY IT!------------------------------------------------------------------------*1 last note, when the package arrives, OPEN IT IMMEDIATELY and let it decompress/air out. Ours took only 1 hour to fully decompress as it was only in shipping for a few days. The majority of the smell left after a few hours and wasn?t bad to begin with. The odor completely left after 2 days, but was mild enough that we slept on it with no complaint the very first night we received it.

      Read More
    • This pad has been a lifesaver!!!
      Verified Purchase

      I didn't realize that the mattress on the guest bed really wasn't that comfortable (never was - not that old) until I decided to test it. Priced new mattresses and decided that a topper was the way to go. I already knew that the foam had to be at least 3" think to mean anything and I knew about density. This wasn't a task for store to store shopping; company was on the way the next weekend. Zipped over to the website and did a bit of searching and there it was. The right thickness and good density. The shipping speed was AWESOME! These pads need time to unroll ON THEIR OWN. And a bit of time to air. You have to have a mattress cover which is deep enough to accommodate both the foam topper (this is really a bit more than a topper) and the mattress. (Ordered that from as well) I placed the pad on top of the mattress and let it do its thing. The next day it had completely unrolled and I was able to make the bed. Lay down and was amazed. It wasn't the same mattress. Be advised, without a cover which some do come with for quite a bit more $$$, it isn't a pretty sight. Since you're going to want a cover anyway, it really doesn't matter. This 3" memory foam topper/pad is fantastic. I stopped writing in order to lie down on it just for the sake of this review (Ah, the sacrifices we make) and it felt even better for my spine/neck than I remembered. And yes, my guests did appreciate the new feel - they'd slept on the bed before. I already know that I will have several good years for the guest bed now. An excellent value!

      Read More
    • Excellent Value!
      Verified Purchase

      This Serta topper is a great value. I previously owned a no-name 2" topper with 2.5 pound density. This Serta from Overstock is 3" with 4 pound density, and the difference is wonderful! The 4 pounds offers firmer support, and with 3 inches it offers more of that support. I can tell the difference. I sleep better and wake up with no aches or pains. I have also priced these on the internet, and overstock has the best price on this product by far! Don't pass this up!

      Read More
    • My Achy Breaky Body
      Verified Purchase

      I had been wanting to buy one of these mattresses for a long time but would only do so when I found one for approximately $100 and at least 3 inches thick. We got this, it arrived in a timely manner and weighs more than you think (lift with your knees). Once opened, it needed to be aired out as it is rather smelly but just letting it breathe for a few hours did the trick. We noticed that it arrived with a couple of nicks (sp?) in it but they were small, so we didn't bother making a big deal over it as a sheet would be on top of it anyway. Well, we loved it for the first 3 weeks before the foam started softening up where our body naturally lies each night. I love the mattress but my husband doesn't nor does he get a good night sleep like i do. The topper is now waiting to be given away. If either you or your partner like firm mattresses, don't bother wasting your money on this, however, if you are like me, and like softer mattresses, you WILL love this and the quality is pretty good

      Read More
    • Love it!!!
      Verified Purchase

      I purchased this topper after having bought a brand new mattress that I hated and couldn't return! The first mattress I bought was too soft and I was allowed one exchange. I *thought* I was choosing carefully, but the mattress ended up being way too hard. I gave it some time so my body would adjust, but nothing. I was not sleeping at all, in pain, frustrated to the point of tears....and left feeling like I had just thrown $1,100 away. I bought this topper and it completely saved me!! I read the great reviews, but did not expect it to make this much of a difference. I took it out of the box and let it unfold on it's own as it says on the instructions. I let it air out like that in a sparebedroom for about 2 days. The smell went away soon enough. It fits perfectly on my queen bed and now.....I actually love my bed!!!! Also, I had mentioned the purchase to a friend of mine and he said he had also bought it sometime ago from Overstock and swears by it! Also, bought one for his parents.

      Read More

    Questions & Answers

    • how about a cover

      • I don't have a cover but do use a mattress pad on it - does the trick.

      • No cover, I bought a new mattress pad the same day on Overstock, it fits great over the topper and the mattress. I Love it! nice and cool, feels like a new bed.

      • I bought a waterproof cover for a bout 20 bucks to go over it.

      Read more Read less
    • Is this mattress topper with a washable outer cover?

    • Is this mattress Certi-PUR US certified? Is it made of Plant Based material or the traditional way?

      Have an Answer? Be the first to answer this question!
    • I'm concerned about how much heat this topper absorbs. I've read reviews about other toppers and people say they tend to get very hot during the night. I tend to sweat at night. Does this particular topper absorb a lot of heat? Will I get vey hot at night?

      • Memory foam does response to temperature, thus making it warmer. You may want to try a gel memory foam. The gel makes the topper more supportive and will keep the topper cooler for longer. This is probably your style if you want the comfort of memory foam with a little extra support and without the extra heat retention. You can locate this by searching "gel memory" foam from the search bar at the top of the homepage.

      • I get hot with the topper but my husband says he's comfortable. When we buy our new mattress we're just going to get one with a gel topper.

      Read more Read less
    • The shipping calculator keeps asking to "Enter a valid zip code". 00824 IS a valid US zip code! If you don't ship to don'US Virgin Islands (part of the Uk united States), then say so, but don't don't treat it as an "invalid zip code"! It is a valid USPS zip code.

      • For additional shipping information, you can contact Customer Care at 1-800-The-BIG-O (843-2446). Sorry for the confusion.

    • I have a Serta Delux 2 inch foam topper that I love, and I'm interested in getting this 3 inch topper as a gift for someone. Can you tell me the difference between the two products (besides the size) since the 3 inch is not named "Delux"? Thank you!

      • Hello Sarah S., when comparing this item item to ITEM# 1010297 (Serta Deluxe 2-inch Memory Foam Mattress Topper), the differnce is the thickness and warranties available for each item. Please feel free to contact us again with any further questions. Thank you for shopping with us!

    • how much does this weigh?

      • Hello stroboscopic, the twin topper weighs approximately 20.3 pounds, the full size topper weighs approximately 26.6 pounds, the queen size topper weighs approximately 32.4 pounds, the CA king weighs approximately 39.2 pounds and the king size topper weighs approximately 35 pounds. I hope this info helps. Thanks for shopping with us!

    • Can I still use the same queen size sheets to cover the topper and my mattress?

      • Hello katchimney, we appreciate your inquiry. The topper will compress somewhat, however, if your sheets are already fairly snug, then it may be difficult to put your existing sheets on; deep pocketed sheets would likely fit better. Thank you for shopping with us!

    • I have two twin mattresses together to form a king but they are only 75 inches long. What size topper should I buy?

      • Hello mathonmove, you will need a king size one. Please let us know if you have any further questions.

    • Does this product have an odor? I have heard that foam products give off a disagreeable chemical smell. What can you tell me about this product?

      • Hello mufasa9601. Product is vacuum sealed at the factory for efficient shipping; vacuum sealing sometimes traps odors, but once opened, a few hours of airing will usually remove the odor. Please let us know if you have any further questions.

      • Is this Certi-pur US certified? I know some of Serta's products are. I'm searching for a non-toxic mattress topper ideally made with plant based material rather than traditionally composed *

      Read more Read less
    • I have a trailer with a corner bed that has an 3" thick cloth-covered foam pad that provides no comfort or support. It is full size, with a rounded corner. Can I cut this topper so it has a rounded corner, and place on top of the current pad?

      • Hello lindybug, I have received your inquiry regarding the cutting of your foam mattress topper. Although cutting your topper will not damage or affect its performance, cutting your foam topper will void your warranty. If however, you choose to cut your foam mattress topper, we recommend the use of a sharp knife or an electric knife. Thanks for shopping with us!

    • I need a full size, but you only have queen and up. If I got a queen size and cut it to fit a full bed, would cutting it compromise the foam in anyway?

      • Hello RickyBobby, unfortunately we do not have information regarding the modification of this product. You can find a similar mattress topper in full size under item # 10031883. Thank you for shopping with us!

    • What is the foam pound density? Need 4+ lb. for pain relief.

      • Hello musette, this is approximately 3.5 lb density. Thanks for shopping with us!

    • Wondering, I have a bamboo-latex mattress. One very important thing I want in a topper/pad is the ability to be COOL. I have heard Temper material get very warm--hence I bought the latex mattress which is very cool. Am looking for a new mattress pad to amplify the benefit I already have but NEVER any topper/pad that gets warm/hot during sleep. Any recommendations?

      • Hello ejt101, you may like the 3-inch gel memory foam mattress pad with cover. It can be found under item # 14189854 - Thanks for shopping with us!

    • What is the California super king memory topper measure in inches?

      • Hello Christine gitsham, this item is approximately 70 inches wide x 80 inches long in a California King. Thank you for shopping with us.

    • What is the width and length in inches of the California super kingside memory foam topper

      • Hello Christine gitsham, this item is approximately 70 inches wide x 80 inches long in a California King. Thank you for shopping with us.

    • what is the best size to order for a standard queen mattress, which is 60" by 80"

    • Why did you choose this product?

      • Hoping to extend life of old mattress. Chose this one for brand-name, wanted memory-foam only, reviews were good, price was reasonable.

      • looking to improve mattress comfort

      • mattress comfort

      • I've bought Serta toppers before and love the quality.

      • My sister has similar one and I love it!

      • Looking for a 3" topper with 4lb. density at a fair price.

      • The reviews were very favorable

      • ?

      • We have owned another and were very happy with it.

      • Replacing old topper due to...dogs

      • Need the extra support for mattress.

      • Reviews from other purchasers here on, Serta satisfaction numbers found elsewhere, and Serta reputation. Look for reviews that explain thickness and density recommendations for your size and sleeping habits.

      • Because I am trusting that this is actually a Serta memory foam mattress. Non name brands of memory foam seam to be hit or miss as to whether they are actually real 100% memory foam.

      • comfort

      • For the camper.

      • I've owned several toppers in the past 15 years and based my selection on the reviews provided.

      • Needed a new one just like the last one. Nothing fancy. Just foam.

      • I have had one before

      • Positive reviews by obviously qualified owners.

      • 2" too thin. 4" too thick. Just right

      Read more Read less
    • Why are the sizes so short. I can purchase the same topper on but the sizes are actual mattress sizes. I ordered a Queen from Amazon and it was 60x80x3 instead. The Queen I ordered from Overstock was only 58x77x3. The topper from Overstock only weighed 26 pounds making the topper only 3.37 pound density while the one from weighed 33.3 pounds. Why are the toppers shorter and have less density than advertised on Overstock than on Amazon for the exact same product a Queen Size Serta Memory Foam 3-inch Mattress Topper?

      • Hello obuyer101, I hope your day is going well. The density of the mattress is 4 pounds and the queen-size is 75 x 67 inches. Thank you for shopping with us.

    • I want to replace the Memory Foam Topper I bought in 2005 with the identical product, only in King size. I see that it is out of stock or discontinued. Which would you suggest as the very closest alternative? It was the: ITEM#: 958799 Model Number O-3S400 Materials - Visco elastic foam Would it be this Serta one, or another? We want firm, 4 lb, NOT GEL (we have a gel now and we are sinking into it!) Thanks for your help

      • Hello zansgram, I think this one would work great. this is also 4lb density. Have a great day!

    Shopping Tips & Inspiration

    Shipping & Returns

    This product is not yet released, and is expected to ship on Jan. 26, 2006.

    This date is subject to change. In order to assure you receive's low price on this item, your credit card will be charged upon order placement. The item will ship immediately upon release.


    Usually leaves our warehouse in 1-2 business days. *

    Standard Return Policy:

    Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

    FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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    For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

    ** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.


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