Subrtex 4 Inch Twin Mattress Topper, Gel Memory Foam Bed Topper with Removable Cover, Pressure Relieving for Old Mattress Upgrade, CertiPUR-US Certified
Subrtex 4 Inch Twin Mattress Topper, Gel Memory Foam Bed Topper with Removable Cover, Pressure Relieving for Old Mattress Upgrade, CertiPUR-US Certified
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Subrtex

Subrtex 4 Inch Twin Mattress Topper, Gel Memory Foam Bed Topper with Removable Cover, Pressure Relieving for Old Mattress Upgrade, CertiPUR-US Certified

4,052 ratings
Subrtex 4 Inch Twin Mattress Topper, Gel Memory Foam Bed Topper with Removable Cover, Pressure Relieving for Old Mattress Upgrade, CertiPUR-US Certified2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 4 inch Twin2 Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Breathable Cover CertiPUR US Certified Adjustable Straps Machine Washable 2 Twin2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 2 inch Full2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 4 inch Queen2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 2 inch California King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 3 inch King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 3 inch TwinSubrtex 4 Inch King Mattress Topper Gel Memory Foam Bed Topper Removable Cover Pressure Relieving Old Mattress Upgrade CertiPUR US Certified2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 2 inch King2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 2 inch Twin XL2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 2 inch Twin4 Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Breathable Cover CertiPUR US Certified Adjustable Straps Machine Washable 4 Queen2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 4 inch California King3 Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Breathable Cover CertiPUR US Certified Adjustable Straps Machine Washable 3 TwinSubrtex 3 inches Gel Infused Memory Foam Bed Mattress Topper High Density Cooling Pad Removable Fitted Bamboo Cover Ventilated Design 10 Years Warran3 Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Breathable Cover CertiPUR US Certified Adjustable Straps Machine Washable 3 FullSubrtex 3 Inch Twin XL Mattress Topper Gel Memory Foam Bed Topper Removable Cover Pressure Relieving Old Mattress Upgrade CertiPUR US Certified2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 4 inch Full2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 2 inch Queen3 Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Breathable Cover CertiPUR US Certified Adjustable Straps Machine Washable 3 California2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 3 inch QueenSubrtex 3 Inch Cal King Mattress Topper Gel Memory Foam Bed Topper Removable Cover Pressure Relieving Old Mattress Upgrade CertiPUR US Certified2 3 or 4 Inch Gel Infused Memory Foam Mattress Topper with Removable Fitted Cover 4 inch Twin XL4 Mattress Topper Gel Infused Memory Foam Mattress Topper Soft Breathable Cover CertiPUR US Certified Adjustable Straps Machine Washable 4 Twin
Bed SizeTwin
Thickness4 in

Key item features

  • Comfort Upgrade: Refreshes firm or aging mattresses, providing a responsive memory foam layer that adds cushioning for balanced comfort and support.
  • Targeted Pressure Relief: High-density memory foam gently conforms to the body's natural curves, evenly distributing weight to cushion pressure points.
  • Ventilated Gel Design: Features ventilated, gel-infused memory foam promoting consistent airflow and adapting for balanced comfort throughout the night.
  • Removable Washable Cover: Includes a comfortable, breathable cover (90% polyester, 10% bamboo rayon) that is removable and machine washable for easy care.
  • Secure Stable Fit: Adjustable straps are designed to secure the topper to the existing mattress, effectively reducing shifting during sleep.
  • Certified Foam Standard: Made with CertiPUR-US certified memory foam, ensuring adherence to established standards for content, emissions, and durability.
  • Simple Setup Process: Delivered compressed and rolled, requiring 24-48 hours in a ventilated area to fully expand to its intended size.
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About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.3 out of 5 stars
stars
4,052 ratings1,464 reviews
How item rating is calculated
  1. 5 stars70% (2,853)
  2. 4 stars11% (439)
  3. 3 stars5% (202)
  4. 2 stars4% (155)
  5. 1 star10% (403)

Reviews summary

Pros

  • : Offers balanced firmness and softness for a comfortable surface.
  • : Provides relief from multiple areas of the body.
  • : The topper shows consistent durability and sturdy build.
  • : Priced lower than similar products.

Neutral

  • : It varies from soft to overly firm and causes inconsistent support
  • : Can be secure, but may not stay in place for all users.
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Showing 1-3 of 1,464 reviews

Jul 4, 2026
Reviewer name: anonymous
Item details
Bed size: King
Thickness: 4 in
Sold bySUBRTEXDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Very comfortable helps with my chronic back pain.

Helpful?39CV8W66BJYS790663520
Sep 23, 2026
Reviewer name: jamie
Item details
Bed size: Queen
Thickness: 4 in
Sold bySUBRTEXDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good nites rest finally

I just put it on the brand new bed with springs that's been killing my back shoulders etc I'm hoping this will do the job. When I laid on it I almost fell asleep rite their it feels awesome and it's all of 4 inches it has some sturdy straps to hold in place too. So far I'm very happy.

Helpful?39CV8W66BJYS790663520
Aug 28, 2026
Reviewer name: carolann
Top Reviewer
Item details
Bed size: King
Thickness: 4 in
Sold bySUBRTEXDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

In love 🩷!!

This mattress pad is very comfortable and well designed. It expanded to full thickness in about two hours and I love the comfort of the product

Helpful?39CV8W66BJYS790663520
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was $99.99
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