Mainstays 4" Memory Foam Mattress Topper, Twin XL
Mainstays 4" Memory Foam Mattress Topper, Twin XL
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Mainstays

Mainstays 4" Memory Foam Mattress Topper, Twin XL

Mainstays 4" Memory Foam Mattress Topper, Twin XLMainstays 4 Memory Foam Mattress Topper TXL
Thickness:4 in

Key item features

  • PRESSURE-RELIEVING COMFORT: Gel memory foam contours to your body to help relieve pressure points and enhance overall sleep comfort
  • GEL MEMORY FOAM DESIGN: Premium gel-infused memory foam helps provide adaptive support while promoting a more comfortable sleep temperature
  • SUPPORTS ALL SLEEP POSITIONS: Designed to provide balanced comfort and support for back, side, and stomach sleepers
  • REDUCED MOTION TRANSFER: Memory foam construction helps absorb movement for less sleep disturbance throughout the night
  • REFRESH YOUR MATTRESS: Instantly upgrade the feel of your mattress while helping extend mattress life and improve sleep quality
  • CERTIPUR-US® CERTIFIED FOAM: Foam is independently tested for content, emissions, durability, and performance
Current price is $78.00
Price when purchased online
  • Free shipping
  • Free 90-day returns

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Customer ratings & reviews

4.8 out of 5 stars
stars12 ratings12 reviews
How item rating is calculated
  1. 5 stars75% (9)
  2. 4 stars25% (3)
  3. 3 stars0% (0)
  4. 2 stars0% (0)
  5. 1 star0% (0)

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Showing 1-3 of 12 reviews

May 29, 2026
TatjanaF
5 out of 5 stars review

Lightweight and low maintenance.

[This review was collected as part of a promotion.] Wow, what a great upgrade! The twin-size mattress topper from Mainstays is fantastic! I immediately noticed it's not too heavy and has a super soft texture. It's about 4 inches thick, made by Sinonax, and is foam. It came rolled up, but after opening it, it quickly took the right shape and was ready to go on the bed. Plus, there was no smell at all. After sleeping on it, it feels incredibly soft and comfortable, with a plush texture. It feels like your body is perfectly contoured in it throughout the night, as if it were made just for you. This topper offers the necessary smooth support. It's thickness provides noticeable comfort and pressure relief. I didn't encounter any issues while putting a sheet on it, it fits perfectly. I would definitely recommend it.

Review from influenster.com
Helpful?38J7C296P82S16850605896
May 29, 2026
AlexisD
5 out of 5 stars review

This is my new favorite thing!!

[This review was collected as part of a promotion.] Where has this topper been my whole life!! It is absolutely heavenly!! I thought my mattress was nice already, but with this on it I never want to get out of bed! I want to buy this topper for every bed in the whole because it's so comfortable. It's like sleeping on a cloud. I have back issues and this definitely helps immediately. I'm happy that the price is right too in case my toddler should have an accident on it ugh. I highly recommend this brand and topper.

Review from influenster.com
Helpful?38J7C296P82S16850605896
May 31, 2026
NilpaP
5 out of 5 stars review

Great mattress

[This review was collected as part of a promotion.] Awesome thick 4 inch full size memory foam mattress topper from mainstay. I was looking for something that would be comfortable on my kids bed. The pressure points are great for him and for the adults. Mainstay will always be value focused and affordable for everyone!

Review from influenster.com
Helpful?38J7C296P82S16850605896