Mattress Topper King, 4 Inch Gel Infused Memory Foam Bed Topper for King Size, CertiPUR-US Certified
Mattress Topper King, 4 Inch Gel Infused Memory Foam Bed Topper for King Size, CertiPUR-US Certified
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Subrtex

Mattress Topper King, 4 Inch Gel Infused Memory Foam Bed Topper for King Size, CertiPUR-US Certified

4.3 stars out of 844 reviews
(4.3)|
844 ratings
Mattress Topper King, 4 Inch Gel Infused Memory Foam Bed Topper for King Size, CertiPUR-US Certified2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 4 King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 4 Full2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 3 Twin2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 2 King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 3 Full2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 3 California King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 3 King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 2 Twin2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 4 Twin2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 3 Queen2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 3 Twin XL2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 4 California King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 4 Twin XL2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 2 Full2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 2 Twin XL2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 4 Queen2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper 2 Queen
Bed Size:King
Thickness:4 in

Key item features

  • High-Density Foam: High-density pound memory foam prolongs mattress's longevity and maximizes support.
  • Gel-Infused Comfort: Ventilated gel-infused memory foam helps regulate sleeping temperature for a comfortable sleep.
  • Multiple Sizes: Available in six sizes: Twin, Twin XL, Full, Queen, King, and California King to ensure a perfect fit for any bed.
  • Pressure Relief: Pliant material conforms to your body, offering pressure relief and a soft, plush feel.
  • Easy Setup: Boxed for convenient shipping and easy setup; allow 48-72 hours for the bedding to expand to its proper size and shape.
  • CertiPUR-US Certified: Meets CertiPUR-US Program standards for performance, emissions, and durability.
  • Unwashable Topper: The mattress topper is unwashable and will break into pieces if washed; includes only the topper, no cover.
  • Versatile Use: Compatible with any box spring, platform bed, or bed base; suitable for camper, RV, camping, and dorm room.
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Current price is $129.99
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Columbus, 43215
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Sold by SUBRTEX
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4.447398843930636 stars out of 5, based on 5192 seller reviews(4.4)
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About this item

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Customer ratings & reviews

4.3 out of 5 stars
stars844 ratings361 reviews
How item rating is calculated
  1. 5 stars71% (599)
  2. 4 stars11% (91)
  3. 3 stars5% (45)
  4. 2 stars4% (30)
  5. 1 star9% (79)

Reviews summary

Pros
  • : Provides a comfortable sleeping surface with the right amount of sink.
  • : Provides comfort for back, hip, and shoulder areas.
  • : Provides good temperature regulation.
  • : Offers a comfortable mattress topper at a cost.
  • : Provides sufficient body support while sleeping.
Neutral
  • : Can be odorless, but some experience a slight smell.
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Showing 1-3 of 361 reviews

Dec 25, 2025
Cathleen
Item details
Bed size: Queen
Thickness: 4 in
Sold bySUBRTEXDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Perfect for Me

This topper is very comfortable. We laid it outside on a tarp outside to let it puff up after unwrapping it. The temp was pretty warm and within a few hours it was evenly expanded to the full 4 inches. We didn't notice any smell at all. The blade on the tool to cut open the plastic wrapping, came loose before I even sliced 4 inches. It wasn't a big deal, i just used scissors and made sure to pull the plastic away from the mattress as I removed the wrapping. I haven't noticed being warmer or sweating because of it.

Helpful?3DV2AQ0WO0LV359541322
Nov 21, 2025
meredith
Top Reviewer
Item details
Bed size: Twin
Thickness: 3 in
Sold bySUBRTEXDelivered byWalmart
5 out of 5 stars review

Verified Purchase

I like this product...I have two...one I have had 6 years...the second about two. They are very comfortable...dont slide around...and they can be removed from cover and cut to size.

Helpful?3DV2AQ0WO0LV359541322
Jan 31, 2026
Joyce
Item details
Bed size: Queen
Thickness: 3 in
Sold bySUBRTEXDelivered byWalmart
5 out of 5 stars review

Verified Purchase

I love the softness yet firm enough l sleep better wirh it then the regular foam pad matress topper of the same thickness. no more sore back on a new matress.

Helpful?3DV2AQ0WO0LV359541322