Mainstays 8 in Full Tight Top Innerspring Mattress with Gel Foam
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Mainstays 8 in Full Tight Top Innerspring Mattress with Gel Foam

9,646 ratings

Key item features

  • Precise Dimensions: Measures 75 inches in length, 54 inches in width, and has an 8-inch height, ideal for efficient room and bed-frame planning.
  • Supportive Firmness: Features a firm comfort level, a tight top design, and a Bonnell coil innerspring construction, complemented by a gel foam layer for a cushioned feel.
  • Adaptable Foundation: Compatible for use with various bed setups, including platform frames or a traditional box spring, offering flexible placement options.
  • Certified Components: Constructed with CertiPUR-US certified foam and features an OEKO-TEX certified cover, ensuring material standards.
  • Strong Capacity: Designed to support a substantial maximum load weight of up to 500 pounds, providing reliable durability.
  • Compact Profile: Its low 8-inch profile makes it suitable for compact sleeping environments such as bunk beds, trundle beds, dorm rooms, and guest rooms.
  • Post-Unboxing Expansion: As a mattress-in-a-box, it requires 24 to 72 hours to fully expand and settle after unboxing, facilitating easy setup in tight spaces.
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Specs

Bed size, FullMattress comfort level, FirmMattress type, Innerspring MattressesMattress thickness, 8 inBrand, MainstaysMaterial, Foam

About this item

Product details

Built for compact sleeping spaces, this Mainstays Full innerspring mattress keeps a low 8-inch profile that suits setups like bunk beds, trundle beds, dorm rooms, and guest rooms. Its tight top design pairs firm support with a layer of gel foam for a cushioned feel, while the innerspring build creates a supportive surface without adding extra height. Because it arrives as a mattress-in-a-box, you can bring it into tighter rooms and get it in place before it settles. After unboxing, allow 24-72 hours for the mattress to fully expand.
  • Full size measures 75 in L x 54 in W x 8 in H for bed-frame and room planning.
  • Firm comfort level with a tight top and Bonnell coil innerspring construction.
  • Works with platform frames or a traditional box spring.
  • CertiPUR-US certified foam is covered with an OEKO-TEX certified cover.
  • Supports up to 500 lb maximum load weight.
  • Allow 24-72 hours for the mattress to fully expand after unboxing.
info:
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Specifications

Bed size

Full

Mattress comfort level

Firm

Mattress type

Innerspring Mattresses

Mattress thickness

8 in

Customer ratings & reviews

4.2 out of 5 stars
stars
9,646 ratings2,072 reviews
Includes global ratings and reviews
How item rating is calculated

Reviews summary

Pros

  • : Provides a lower-cost alternative for mattresses.
  • : Setup takes only minutes with minimal effort.
  • : Mattress construction is made with durable components.

Neutral

  • : Mattress is supportive with a topper but otherwise thin, springy.
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Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
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Showing 1-3 of 2,072 reviews

Oct 8, 2026
Reviewer name: Joycelyn
Item details
Bed size: Twin
Mattress thickness: 6 in
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great buy

Perfect bed . Great size

Helpful?2MIOOCMEF1BK11461920286
Nov 5, 2026
Reviewer name: Erika
Item details
Bed size: Twin
Mattress thickness: 6 in
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This is the most comfortable mattress in our house of seven people. We got it for my daughter but my husband, son and I often nap or sleep in it because it is so comfortable. It squeeke just a tiny bit when you first climb onto it, but not very loud. I do feel sorry for the poor girl who delivered it because it is heavy. It came rolled up, which is pretty neat technology.

Helpful?2MIOOCMEF1BK11461920286
Aug 12, 2026
Reviewer name: Irina
Item details
Bed size: Twin
Mattress thickness: 6 in
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Very good bed

Ease of setup

Helpful?2MIOOCMEF1BK11461920286
Current price is $148.00
Price when purchased online
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$148.00
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