Comfort Dreams 'Mem-Cool' 4-inch Memory Foam Mattress Topper

The Rewards Program that Pays for Itself
  • EARN 5 to 40%
    Earn 5% in Club O Rewards on every order & up to 40% on select items.
  • FREE SHIPPING Every Order, Every Day*
    No matter how big or small, your order always ships for free.
    Dedicated customer service and early access to exclusive deals.
    Club O pays for itself, or we make up the difference
Starting at: $159.99
Free Shipping*
  • Delivery Estimate

    Select a Product Option to view shipping

    • Product Alerts

      Stay in the know! Choose which alerts you’d like to receive on this product.

    Comfort Dreams 'Mem-Cool' 4-inch Memory Foam Mattress Topper
    • Wishlists
    • Save for Later
    Made in USA

    Minimize tossing and turning and get a good night's rest with this durable memory foam mattress topper. This four-pound topper features temperature-sensitive, breathable foam that cradles your body as you sleep, ensuring your comfort.


    ITEM#: 11290402

    Sleep in comfort on this Cool Memory Foam mattress topper. Bedding is perfect for a warm climate or a cooler sleeping temperature. Includes all the usual features of a premium Memory Foam Topper with the added enhancement of increased air flow.

  • Type: Memory foam
  • Topper has 4-pound density
  • Foam has a 99 open cell configuration for maximum heat dissipation
  • Cells are naturally opened using a patented foam making process
  • Ten times the air flow of other Memory Foam
  • Originally designed for NASA, this space age foam cradles your body, reducing pressure points that cause tossing and turning
  • Hypoallergenic, anti-microbial, temperature-sensitive foam promotes a healthy night's sleep

    • Twin: 39 inches wide x 75 inches long x 4 inches thick
    • Twin XL: 39 inches wide x 80 inches long x 4 inches thick
    • Full: 54 inches wide x 75 inches long x 4 inches thick
    • Queen: 60 inches wide x 80 inches long x 4 inches thick
    • King: 76 inches wide x 80 inches long x 4 inches thick
    • Cal King: 72 inches wide x 84 inches long x 4 inches thick

    Memory Foam Do's and Don'ts:
    1. To maximize memory foam expansion; remove from packaging within 72 hours of receipt.
    2. This product arrives very tightly packed. Please unwrap and allow 48 hours for this product to return to its original shape.
    3. Being sealed in plastic packaging sometimes traps odors. A few hours of airing usually removes 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 every item is unique. Please be advised that even similar products may produce different firmness results.

  • Specs

    Type Mattress Topper
    Thickness 4 Inch
    Memory Foam Type Memory Foam
    Comfort Level Medium
    Density 4 Pound
    Product Features Antimicrobial Hypoallergenic Made in USA
    Tags Comfy Luxury Quality Soft Warm Winter
    Dimensions See product description
    Materials Memory foam
    Model Number na

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Very nice.

      Very comfy. Need I say more.

      Read More
    • Nancy

      Worked great for my husband for his back after an injury.

      Read More
    • Dream sleep

      Best sleep we have had in months

      Read More
    • sleeping on a cloud

      Great support and comfort. I had to return the first one due to a large hole. The next one had 2 small defect that were not bad enough to return. I have been sleeping Great with less morning stiffness and pain. My husband who runs hot doesn't over heat so heat is not trapped in the foam. A must for good sleep.

      Read More
    • Wonderful!

      Mem Cool is a blessing for my damaged back and hips. I have slept better than I have in years! I have Degenerative Disc Disease and Arthritis and after 4 back surgeries this is wonderful. Sleep is so important and this Topper makes it possible! The cost was so reasonable for retired people who live on a budget. Try it! See what real relief feels like!

      Read More
    • mem-cool exceeds claims.

      I have 4 inch memory foam on every bed in my home and I have recommended to all my friends. However,although memory foam gives you a better sleep it can tend to make you warm even with a bed pad on top. Since I like to sleep in a cool environment I decided to try the Mem- Cool. What a difference! This product lives up to all it's claims. Although it cost a little more it is well worth the price . After I opened the package it only took 12 hours for the slight odor to dissipate .From now on I will only recommend 4 inch Mem-Cool Memory Foam Mattress Topper.

      Read More
    • Finally Free of Back Pain

      I have been suffering from severe lower back pain almost from the minute I lay down at night on my 22 year old pillow top EXPENSIVE mattress. I would wake and get up several times each night or just toss and turn and rearrange pillows every night. I even placed soft pillows below my lower spine with no help. This has gone on for nearly 2 years now. I was even going to have a doctor check me out for the beginnings of problems with my sciatic area. I finally invested in this memory foam mattress topper because of the "Cool Max" feature. From the very first night I used this, the pain in my lower back and hip completely stopped. I have slept comfortably all through the night (except if the cats jump on ME) I don't even feel them jumping up on the bed anymore! I look forward to many more restful nights of sleep in the future. There was NO smell when I unwrapped it. The box with the king size sleeper WAS heavy..... about 50 pounds. So it was a bit of a struggle to do this myself but once on the bed and unwrapped, I was able to put a deep pocket fitted sheet over it immediately and make up the bed. There really was no waitinig time for a smell to subside or for the mattress to full lay flat. All in all, lifitng it up two flights of steps and getting it on the bed and the bed made up took me about half an hour. THANK YOU THANK YOU THANK YOU for offering this wonderful product.

      Read More
    • Dreaming in Comfort

      For years I had been anticipating getting a tempurpedic mattress and sleeping within blissful comfort. After getting one I was so very disappointed. I would wake up with my entire backside slightly damp from sweating. It also truly was not very comfortable. I ended up sending it back within the 90 day guarantee. My husband and I then ordered a sleep number bed and it is ok but not wonderful. I hemmed and hawed about ordering this mattress topper for about a year and am so extremely glad that I did. It is amazingly comfortable and does not make me sweat. This addition to our bed is nearly as comfortable to sleep on as the best mattress I have ever owned. I am thrilled with my purchase of this product!

      Read More
    • Unbelievable Sleep

      I LOVE this product! It's made sleeping so wonderful that I never want to get out of bed. I actually think about it when I'm out. I have arthritis and bursitis in my hips so I tossed and turned all night before buying this. I was really worried because I am such a hot sleeper and sometimes sweat in my sleep. Not a problem at all with this mattress. So glad I bought it. Worth every penny. I wake up rested and refreshed for a change.

      Read More
    • 4 Lbs.? I don't think so

      Bought this topper to replace a too soft 3 lbs topper. It is softer than the 3 lb.No support at all- you "touch bottom" right away. Also tended to remain compressed after I got up and got lumpy and misshapen after a few weeks. I freecycled it. Maybe someone will use it for a pet. As others have mentioned, these are nigh-on impossible to return because it is difficult/impossible to re-compress and repack. When you are talking queen size, you are talking about considerable weight as well. Wish there was a way to try these out first.

      Read More

    Questions & Answers

    Get your product questions answered right here.
    • Why did you choose this product?

      • I read all the reviews on all the toppers on Kohls Walmart and many others...this had the most info....hope this is the same quality as the ones sold in 2010 ...this is for a RV mattress...ouch

      • We are satisfied former customers. We have purchased memory foam from Overstock prior to this purchase. Paul Miller

      • for comfort

      Read more Read less
    • Is this a firm support? I would like to purchase, but don't want a squishy topper. Thanks!

      • Hello janet4ta, Comfort Dreams mattress toppers run a medium firm. If you prefer a more firm mattress topper this will be just what you are looking for. I hope this helps. Thank you for shopping with us.

    • How come it only lists Queen and King dimensions, yet it lists all sizes in the options scrolldown list, including full size? Does it really offer full? That's the size i need! Also, if you don't mind, please tell me if the grande hotel collection mattresses are also antimicrobial and hypoallergenic? Thanks!

      • Hello zixa, the full size is 54 inches wide x 75 inches long x 4 inches thick. This mattress is hypoallergenic and antimicrobial. Thank you for shopping with us!

    • What is the weight and the comfort number?

      • Hello nadine1946, the weight of the queen size topper is approximately 45 pounds. I do not find a comfort number, but there is a comfort level listed as medium. We hope this information is helpful to you. Thank you for shopping with us. Vicki H

    • SO-o-o-o made in USA or not? In response to harriet725 4/26/12 not made in USA In response to holleysoro 11/26/12 MADE IN THE USA ?????????

      • Thank you for your inquiry, nadine1946. We apologize for any confusion. This topper was made is the USA. Please let us know if you have any other questions. Thank you for shopping with us.

    • What are the measurements of the twin xl topper?

      • Hello coated01, the Twin XL measures 37 inches wide x 77 inches long x 4 inches thick. Thank you for shopping with us!

    • How much does the queen size topper weight? I need to know the actual weight and the shipping weight. Thank you!

      • Thank you for your question airmilt. The Comfort Dreams 'Mem-Cool' 4-inch Queen/ King-size Memory Foam Mattress Topper weighs around 45 pounds. Have a great day.

      • Don't have queen, but king is heavy!

      Read more Read less
    • Once again, there is a discrepancy in the information listed in the product details section and the information provided here by Overstock's customer care. The Overstock answer below reports that this item is not made in the USA, while the product details section is clearly capped off by a big red, white, and blue "Made in USA" seal right at the bottom. Soooo? Which answer is right this time?

    • Is there a warranty on this product? How long should it last?

      • Wonder if no answer means there isn't a warranty?

      • We''re sorry, but this mattress topper does not come with a warranty.

      Read more Read less
    • Does it matter which side is placed down/up?

    • I just received by topper and it's upwrapped. But because I have to sleep in the day and work at night, do I really have to wait until tomorrow before I can use it....I would love to rest on it in an hour or so?

    • I am looking for something that is soft, can you tell me what is the firmness number?

    • Does this memory foam mattress pad come with a cover? Hopefully that is washable?

    • Does it have a (possibly toxic) flame retardant? If so which one?

    • You also never did answer if it was made in the U.S.!!!

      • Thank you for your inquiry, harriet725. Yes, this topper is made in the USA. We hope this helps. Thank you for shopping with us.

    • I would like to know the IDL rating also, you think over a month would give you enough time to answer that question. Please answer that question if you would like a sale.

      • The ILD rating varies with the type of foam. The memory foam range is 13 to 15; the conventional foam is 50 to 55. This item has not been testing for its exact IDL rating.

    • I need to know the total weight for this mattres. Total weight with shipping box: ??? Total dimension when shipped: ??? Thank you.

      • This is approximately 4lbs and the shipping weight, as it is vacuum sealed is 48lbs and the dimensions of the box are Length: 41", Width: 13", Height: 13".

    • What is the ILD rating on this topper and is it made in the USA?

      • The ILD rating varies with the type of foam. The memory foam range is 13 to 15; the conventional foam is 50 to 55.

      • Other brands know the exact ILD rating. So why is this different? Also the question of is the foam from the US has not been answered.

      Read more Read less
    • can we use the twin x-long safely on adjustable beds

      • No unfortunately we don’t recommended for adjustable beds because the topper can crack every time you move the bed.

      • No unfortunately we don'€™t recommend for adjustable beds because the topper can crack every time you move the bed.

      Read more Read less
    • how firm is the mem-cool foam topper? will i stay on top of it? or sink to the bottom?

      • This is a 4 pound density foam, which is a medium/firm foam. You likely will not sink to the bottom of this topper.

    Shopping Guides

    Shipping & Returns


    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.


    This item cannot be shipped to Alaska or Hawaii. More details

    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.
    Standard shipping details
    Expedited shipping details

    * 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.