Sleep Philosophy 4" Gel Memory Foam with 3M Cover Mattress Topper in White, Cal King BASI16-0454
Sleep Philosophy 4" Gel Memory Foam with 3M Cover Mattress Topper in White, Cal King BASI16-0454
$249.99 $153.73 Add to cart

View entire Sleep Philosophy collection


Sleep Philosophy 4" Gel Memory Foam with 3M Cover Mattress Topper in White, Cal King BASI16-0454

$249.99 $153.73

(10 customer reviews)

12 available - Limited Stock!

  • Ships out within 1-3 Business Days (Apr 19th to Apr 23rd)
  • No Tax
  • Estimated shipping $21.89

The Sleep Philosophy 4" Memory Foam Topper will transform your mattress from ordinary to extraordinary. Our topper features 2 inches of 2.5 lb. density temperature control memory foam layered onto another 2" of high-density support foam. The memory foam adjusts to your body temperature to help alleviate pressure points and relax muscles for a more soothing night’s sleep. Experience amazing value and softness at a fraction of the cost. Memory foam is resistant to dust mites and is naturally antimicrobial. Our topper also comes with a zippered removable cover that features a 3M Scotchgard(tm) moisture-wicking management protector. The protector gives the cover stain release properties while providing moisture management for enhanced comfort and rich coziness. The cover has a ‘non-skid’ backing which locks the topper in place on your mattress. Another feature we know you’ll appreciate is that our slightly oversized topper comes in full mattress sizes to give your bed end-to-end coverage. Our packaging technology allows the mattress topper to be efficiently compressed into one box that’s easily shipped to your door. Simply unbox, unroll, and this mattress topper does the rest, expanding to its original shape within 72 hours.

Cover: 250gsm knit face with 3M moisture management treatment, 100gsm anti-slip reverse, knife edge, 4" self gusset
Inner: 90gsm polyester jersey
Foam: 2" 40D blue memory foam + 2" 25D regular foam

* 4" 100% Memory Foam adds an instant layer of comfort to your mattress
* 2" Cooling Gel provides optimal temperature control and sleeping comfort
* 2" base layer of memory foam provides extra support
* Pressure-relieving comfort relaxes muscles
* Naturally Antimicrobial & Hypoallergenic
* Cover with zipper features 3M Moisture and Stain Release
* Anti Slip reverse side of cover keeps the topper well in place
* Oeko-Tex Certified, includes no harmful substances or chemicals
* Cover is machine washable, spot Clean Foam Topper
* Comes efficiently compressed; simply unbox, unroll and this topper does the rest, expanding to its original shape within 72 hours

Additional information

Weight31.277533 lbs
Dimensions21.063 × 20.2756 × 20.2756 in


10 reviews for Sleep Philosophy 4" Gel Memory Foam with 3M Cover Mattress Topper in White, Cal King BASI16-0454

  1. sandy C

    Unboxing this topper had me on the edge of my seat, but once I unraveled it, the real adventure began! The tight roll and bumpy texture added an extra layer of excitement as I spread it out on my bed. It was like a rollercoaster for my senses!

  2. Beverly j W

    I am absolutely thrilled with this purchase! Although, I must admit, some of the reviews mentioning its slightly larger size than a queen bed were spot on. It does slightly overhang my bed, but that just adds to the fun! Putting on sheets can be a bit of a challenge, but it’s all part of the adventure.

  3. Chris G

    Wow, this mattress topper is a dream come true with its 2 inches of support foam and 2 inches of memory foam! And let me tell you, both are top-notch quality. Plus, after a day or two, the smell magically disappeared and the foam became perfectly flat with no bumps or lumps. And let’s not forget about the high-quality zipper cover and the anti-skid bottom that keeps everything in place. It’s like sleeping on a cloud, but better!

  4. Nikki Brey R

    This mattress topper is a dream come true! The foam is expertly cut and the cover is flawlessly made. I was so excited about it that I even got a Full size for my Queen bed, and it fits like a glove with just the right amount of space around the edges. No need for it to cover every inch, it’s just perfect as it is!

  5. Liz L

    Calling all side sleepers! Say goodbye to hip pain and hello to the best sleep of your life with this amazing pad. Trust me, you won’t want to get out of bed in the morning!

  6. Debbie C

    This topper is top-notch! The cover is spot-on and the construction is solid. However, it’s a bit on the firm side. I was hoping for a cloud-like softness.

  7. Janice M

    This topper just can’t seem to stay put on my mattress! I got the queen size for my queen bed, but it’s one inch bigger on each side, so it’s always slipping and sliding. Not the best match for pillow top mattresses.

  8. Fran

    This mattress topper saved my camping trip! It turned my uncomfortable foam mattress into a cozy oasis. I can’t get enough of it and I definitely think you should give it a try!

  9. Dorothy M

    Wow, this product is no joke – it comes in a massive box! My post office couldn’t handle it, so if you’re not a weightlifting champ, make sure you have a buddy to assist. The queen size version is a hefty 40 lbs, but trust me, it’s worth it. As a soon-to-be mom in her second trimester, my hips have been killing me. But this magical product has come to my rescue, providing much-needed relief and helping me catch some much-needed Z’s. Say goodbye to hip pain and hello to sweet dreams!

  10. Chris G

    Wow, talk about a surprise! I ordered a 4-in mattress topper, but what I received was a 3-in one in a box labeled as 4-in. Did someone mix up the sizes or was it never really 4-in to begin with? Apparently, this company also sells a 3-in version (does that mean you only get 2-in?), but that’s not what I wanted. I reached out to Amazon and they said I could return it, but let’s be real, that’s easier said than done.

Add a review

Your email address will not be published. Required fields are marked *