Slumber Solutions Gel Highloft 4-inch Memory Foam Mattress Topper with Waterproof Cover

Included Warranty: 5 year Limited Manufacturer
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.

    Slumber Solutions Gel Highloft 4-inch Memory Foam Mattress Topper with Waterproof Cover
    • Wishlists
    • Save for Later

    Sleep in comfort on this king size gel memory foam mattress. Designed to completely alleviate painful pressure points and improve circulation while channeling excess heat away, this mattress allows the body to relax completely for high-quality sleep.


    ITEM#: 14189942

    Revolutionary Memory Foam infused with cool, rejuvenating gel in a dual-sided design provides the ultimate supportive and comfortable sleep experience. Gel absorbs pressure and channels heat away, preventing excessive heat build-up that causes sleep disturbances.

    • Type: Gel memory foam
    • Measures 4 inches thick
    • Density: 3.2 pounds
    • Cradles your body, reducing pressure points that cause tossing and turning
    • Draws uncomfortable warm air away from your body
    • Open nature of textured side provides improved air flow
    • Polyester knit fabric cover features an air-permeable backing that serves as a moisture barrier
    • Moisture control prevents fluids from penetrating the surface
    • Meets all flammability standards

    • Twin: 37 inches x 73 inches
    • Full: 52 inches x 73 inches
    • Queen: 58 inches x 78 inches
    • King: 75 inches x 78 inches
    • California king: 70 inches x 82 inches

    Memory Foam Do's and Don'ts:
    • To maximize memory foam expansion; remove from packaging within 72 hours of receipt.
    • This product arrives very tightly packed. Please unwrap and allow 48 hours for this product to return to its original shape.
    • 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.

    Topper dimensions may be slightly smaller than your mattress dimensions. Size has been designed to allow you to easily secure your fitted sheet over your new memory foam topper.


    Type Mattress Topper
    Thickness 4 Inch
    Memory Foam Type Gel Memory Foam Memory Foam
    Density 3 Pound
    Tags Comfy Quality Soft Warm Winter
    Dimensions 82 in. L x 70 in.W x 4 in. H
    Manufacturer Warranty 5 year Limited Manufacturer
    Materials Polyurethane and Gel
    Model Number M10090-00819-OS

    Customer Reviews

    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Stars
    • Love it! Topper keeps it clean & dust free too

      To me, anything less than 4" doesn't really provide the effect of memory foam. This one is cool to the skin (even through sheets) and the cover truly keeps the topper and the mattress dust free. Wonderful value.

      Read More
    • No Paperwork sent with Mattress Topper

      Product itself is OK. but there WAS NO PAPERWORK INCLUDED-NOTHING. this is not right. Yes I called Overstock & was given *** off my payment of **** credit to Overstock & membership to ClubO rewards. This is all very good ! But still I DO NOT know if I got the product I ordered without paperwork. Maybe shipping dept got wrong one who knows. Customer service & I looked thru the ones for sale & it is very similar but I would think should ALWAYS be enclosed paperwork to any item ordered especially one like this which isn't returnable. I ordered one with 5 yr warranty no warranty included. A friend ordered much cheaper one from **** & received all kinds of paperwork. The protector itself is great so far so guess my gripe is against shipping dept someone dropped the ball.

      Read More
    • Comfortable mattress topper! So comfy I bought 4

      Mattress topper with memory gel ... Cool and super comfortable.

      Read More
    • The best sleep ever!

      I feel very fortunate in having found this mattress topper. I purchased this particular one because of the many reviews . I have recommended it to 3 people who also are delighted . It is such a relief to wake up in the morning without pain. Who would have thought the name Slumber solutions would be just that, and life changing for me. Thank you for making a back problem almost insignificant.

      Read More
    • Great mattress topper.

      This is a very nice mattress topper. I would highly recommend this item.

      Read More
    • Couldn't sleep, now I can!!

      I bought this item after getting a new mattress but a hand me down mattress. I hadn't gotten any sleep for weeks, I actually started sleeping on the couch to avoid the horrible mattress we had. So after doing much research I found this mattress topper and though it was expensive, I think it was definitely worth it, It is like sleeping on a cloud very comfortable, I think you could put this on a floor and you could get a good nights sleep!!!

      Read More
    • Perfect, Inexpensive

      I got this mattress topper in 2 days. I was soooo happy!!!! Pulled it out of the box, it had its own cover, put it on the bed, and it was off to Never Never Land!! Smart purchase!!! Extremely pleased. Thanks O.CO!!!

      Read More
    • Only got 1 star because I couldn't give it 0

      I just received this mattress.. this is about worthess. The picture shows the memory foam inside the cover.. don't be foolded. It is actually about a 2 inch mattress with 2 inch points that look like alligator teeth... very soft. If this is what you are looking for then it might work for you but I ordered a 4 inch memory foam mattress not a 2 inch to sink into. Then they want to charge me $$$ to return it. So that explains why they only charge $$$ shipping to you. If I had seen this in it's full picture without the cover I never would have ordered. Not worth the money.

      Read More
    • Great Purchase

      Fits perfect, cover with it is great, fully unfolded in a few hours, and no smell. Turned my firm mattress into a very comfortable soft mattress. I weigh 290 pounds and got the best nights sleep I've had in years. Very good quality, well worth the money.

      Read More
    • Excellent comfort n support

      So pleased with this product and it is worth every penny.

      Read More

    Questions & Answers

    Get your product questions answered right here.
    • Is the cover a zip cover that covers it completely on top and bottom - or is it a "mattress pad" that covers the topper and the mattress underneath.

      • Hello soundings, this is only a mattress cover and does not zip all the way around. I hope this helps. Thank you for shopping with us.

    • does this mattress come with a frame or would i have to buy one for it

      • Thanks for your interest, this listing is for a mattress "Topper" its 4 inch memory foam topper. A mattress and frame would need to be bought separately.

    • What color is the cover (it's not really red, is it)?

    • Is the waterproof cover noisy and hot like others?? Or is it just a waterproof material?

      • We are sorry for the inconvenience. We are working on getting this answered for you.

      • This cover is designed to eliminate sleep disturbances, including excessive heat.It is made out of waterproof material "infused with a cool, rejuvenating gel."

      • It is just a waterproof material.

      Read more Read less
    • Can you use an electric mattress pad with this product?

    • can this item be cut with a scissor?

      • Unfortunately, scissors will not give you an even cut. An electric carving knife works well, but please be aware that cutting the foam will void the warranty.

    • Is this american foam?

    • Do standard sheets fit over this topper?

      • It depends on what you mean by "standard" sheets. This mattress topper requires sheets with deep enough pockets to accommodate your existing mattress plus an additional four inches. We would suggest deep-pocket sheets, just to be safe.

    • How much does the king size weigh

    • Does the flat side go up or down?

    • Does this topper have a removeable cover that is machine washable?

    • What is the firmness of this topper?

    • How much does the queen-sized topper weight without the cover?


    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.

    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.