Save for Later
Want to know when you'll get it? Go

What is “Estimated Delivery Date?”

This is an approximate delivery date and is not a guarantee. Delivery estimates are available only for select items to be delivered in the contiguous United States, excluding APO/FPO addresses and PO boxes. Your final shipping cost will be available at checkout.

OverstockTM Store Credit Card

6 or 12 Month Special
Financing Available
No Payments & No Interest on orders over
$150 if you pay in full within 6 months.
Learn More ›
No Payments & No Interest on orders over
$150 if you pay in full within 6 months.
Learn More ›

Slumber Solutions Big Bump 4-inch Memory Foam Mattress Topper

Overall Rating Rating 4.1  |  71 reviews  |  Write a review
Starting at: $91.99
Item #: 13847407
    Big bump means big comfort. The sculpted foam design provides support and additional air flow for improved comfort. Memory foam is designed to reduce motion transfer and distribute weight evenly to help relieve stress points and muscle tension...more

Frequently Bought Together

Buy Together and Save 0% *

* Cannot be combined with other promotions.

People Who Viewed This Viewed

Sponsored Links What's This?
    Big bump means big comfort. The sculpted foam design provides support and additional air flow for improved comfort. Memory foam is designed to reduce motion transfer and distribute weight evenly to help relieve stress points and muscle tension.

    • Type: Memory foam
    • 4 inches thick
    • Density: 3 pounds
    • Originally designed for NASA, this space age foam cradles your body, reducing pressure points that cause tossing and turning
    • Temperature sensitive foam adjusts to your body temperature
    • Eliminates motion transfer and uncomfortable pressure points
    • Disperses your weight evenly
    • Helps rejuvenate tired muscles and eases back pain
    • Meets all flammability standards
    • Care instructions: Spot clean

    • Twin: 37 inches wide x 73 inches long
    • Full: 52 inches wide x 73 inches long
    • 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.

82 in. L x 70 in.W x 4 in. H
5 year Limited Manufacturer
Polyurethane Foam
Model No:


  • Type
    Mattress Topper
  • Thickness
    4 Inch
  • Memory Foam Type
    Memory Foam
  • Density
    3 Pound
  • Product Features
    Made in USA
  • Tags
    Comfy, Cozy, Soft
Was this product information helpful?
Thank you for your feedback.
Thank you. Your feedback will help us create the best experience for our customers.

Showing 5 most helpful reviews on this product.

  • 5 Stars 41
  • 4 Stars 11
  • 3 Stars 9
  • 2 Stars 4
  • 1 Stars 6
  • Like sleeping on a cloud!

    I have rampant fibromyalgia with multiple joints needing replacement & upper & lower back needing fusing. That said, I would heartily suggest buying this topper. I slept straight through on the first night (I'm usually fully awake many times during the night with all the pain) . there was no smell & only took a few hours to puff out. protect it with a mattress pad & sheet so, I did not notice any undue sweating from the foam. I recommend this fabulous topper to anyone in body pain. With just a few weeks of good sleep, my pain is much better & my life has been changed immensely!

  • Great value for mattress topper.

    This is a great 2 inch topper with a 2 inch egg crate shape, (4 inches total). I ordered it for a long twin RV sofa couch which I keep open all the time. You could feel the metal bar support through the couch cushions making it uncomfortable. My husband was skeptical that the foam would even help the problem, but just about every time he sits on the couch, I find him sleeping! The foam density is average for this type of topper. The density helps with keeping the heat retention low, but I also think that the egg crate design also aids with the cooling. The gassing off period was about a day. Since all the sizes were the same price, I got the largest size and cut off the excess using an electric knife. I covered the foam with blankets and use it to line the bottom of our 16 year old dog's crate. He seems to love it too!

    rgk9ruler from Central Massachusetts, Sep 9, 2012

    Flag As Inappropriate
  • Not pleased at all

    I should have listened to the reviewer that said this IS NOT 4 inches thick. It's about 1/2 inch thick with big bumps. The bumps are far apart and the foam comes apart easily. I have it upside down (bumps down) on my mattress, an older mattress that dips in the center. This doesn't help at all. I have to sleep on the right or left side to be comfortable at all. I did order the king for my queen bed and cut off the excess. Then I put that extra down the middle of my bed. Turns out a lump in the middle isn't any more comfortable that a dip. So basically I spent too much money on an inferior product. But I kept reading "a 4 inch memory foam is muuuch better than 3 inch so I gave it a shot. I'm not thinking I would call this a 4 inch memory foam after all.

  • 4 inch topper

    I have had this topper for about a year, and I don't know how I slept without it. I sit propped in bed for long periods of time due to illness, and it is a memory topper and I think it is forgetting :) But it wasn't designed to sit in the same place for hours. I will be buying a new one soon. I was waking up many times throughout the night and my doctor wanted me to have sleep study. I bought this, and discovered sleep! I was waking up all night because of pain, and this thing does wonder. If you have bone pain, arthritis, ect, get one!

  • positive review, good value,

    very good value, makes any hard bed comfortable. I have multiple of these and would buy another.

View All Most Helpful Reviews
  • nice....

    wasn't really satisfied, but I guess it is better than feeling the old mattress, should of got something else with gel.... :/


    yayas49 Mar 31, 2015

  • Pat

    I was very excited after reading MOSTLY positive reviews about this product. Since my mattress is fairly old and I do have back problems from a car accident, I really wanted to getsomething less expensive than buying a new mattress. However, after putting it on my bed, I found it was actually a little too soft. I even tried turning the egg carton side down. I ended it up putting it on a guest bed(which no one has complained about)....but is a guest really going to complain??? There actually was NO smell like some of the other reviews said there would be. I guess I am more dissappointed in it than pleased.


    Pat H. Mar 5, 2015

  • replacement mattress topper

    My dog loves to chew foam, so we don't have any on our bed. However, my parents love this one so when we went to visit for thanksgiving . . . I think you see what happened. My parents liked the replacement more than the original.


    diana09 Jan 20, 2015

  • 2nd Purchase

    If you price comparison bed toppers, especially for a cal. king, you'll see this 4" memory foam is heck of a deal. We bought our first topper in March 2012 and had to replace it Dec 2014. Over two years of comfort and many moons of use and I believe this to be great deal!


    EC80 from Boise, idaho, Dec 23, 2014

  • Decent topper - density noticeably different

    I would recommend this with qualifications. This is a good quality topper and is as described . BUT if you prefer 4lb density pay the extra money & get that. I purchased this (3lb density) pad to replace a 4lb density pad that I purchased on Overstock 8 years ago (and have LOVED) . That 1 lb made a huge difference to me. My partner likes it just fine & doesn't notice much difference, But I can tell it's noticeably "poofier" & offers less support. Although better than no pad, I tossed & turned much more than usual & had back & joint pain upon waking which I haven't had once for the past 8 years with the old pad. I only replaced my old one because the foam was torn in a couple of places due to a move and was starting to crumble a bit. Since this is so difficult to return I will use it on a spare bed & will be purchasing an exact replacement of my first topper (Thank goodness Overstock still carries it!)


    janisw from Palo Alto, CA, Nov 23, 2014

View All Most Recent Reviews

Product Q&A

Ask a Question

Why did you choose this product? Overstock on Mar 2, 2015
Subscribe to Answers
Answer This Question

my hubby & I are experiencing lots of discomfort from our bed now, it will take us awhile to replace our Cal-king bed so we decided to try this out for the mean time, I read the reviews on this particular item & it tells us that this will also help us on our aches & pains..hope we are satisfied... yayas49 on Mar 2, 2015

how much does the queen size weigh? katecory on May 6, 2013
Subscribe to Answers
Answer This Question

Hi katecory, this Slumber Solutions Big Bump 4-inch Memory Foam Mattress Topper in king shipping weight is 20 lbs. Thanks for your inquiry, hope this helps! overstockcustomercare1 on May 10, 2013
I weighed mine in the box and it weighed 13 pounds. They provide a much cheaper product than advertised. Of course they sent a cheaper egg crate design twice but the queen size I received weighs less than what they claim the twin size egg create should weigh. It is so soft there is no support at all. I weigh 150 and am 5'-8" and the mattress topper compresses to less than a half inch. ez1realty on Apr 30, 2014

Can you give me the exact measurements of the King size topper. When you change sizes the the description in the upper right corner does not change, it remains the same which is for a Cal. King? Just want to be exact on Length x Width? Thank you for your assistance! Sincerely, Louise senecastreet on Mar 8, 2013
Subscribe to Answers
Answer This Question

King: 75 inches x 78 inches 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. overstockcustomercare1 on Mar 11, 2013

Does the King size come in one piece or two jester22 on Feb 18, 2013
Subscribe to Answers
Answer This Question

Thanks for your interest, the king size is still one piece. overstockcustomercare1 on Feb 21, 2013

When not in use, can it be rolled up for storage? 46shirley on Jul 23, 2012
Subscribe to Answers
Answer This Question

Yes, it can be rolled up for storage. overstockcustomercare1 on Jul 25, 2012

Do the bumps in this topper provide a cooler sleeping surface on a hot night as opposed to a flat surfaced topper? gma19 on May 23, 2012
Subscribe to Answers
Answer This Question

Yes, they allow for increased airflow. overstockcustomercare1 on May 31, 2012

How much of this topper is actually memory foam? gma19 on May 23, 2012
Subscribe to Answers
Answer This Question

The topper is 100 percent memory foam. overstockcustomercare1 on May 31, 2012

Be the first to ask a question about this product.

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.

Buy Now with Bitcoin Learn More