Mainstays 10” Medium Firm Memory Foam Mattress, Twin
Key item features
- Versatile Fit: 10-inch profile designed for primary rooms, guest rooms, teen rooms, and various sleeping arrangements.
- Universal Comfort: Medium firmness suitable for side, back, and stomach sleepers, ensuring a refreshed wake-up.
- Enhanced Airflow: Breathable cover made from soft, durable fabric to improve airflow and comfort.
- Cooling Infusions: Green Tea Infused Memory Foam and Liquid Gel Flex Foam adapt to your body, keeping you cool and comfortable.
- Motion Isolation: Minimizes movement transfer for undisturbed sleep, even with a partner.
- Wide Compatibility: Compatible with platform beds, slatted frames, adjustable bases, or traditional box springs.
- Safe Materials: CertiPUR-US certified foam ensures the mattress is free from harmful chemicals, safe for all ages.
- Easy Setup: Ships compressed and rolled in a box; expands fully within 48-72 hours after unboxing.
Specs
- Mattress typeMemory Foam Mattresses
- Mattress comfort levelFirm
- Dimensions75.00 x 38.00 x 10.00 in
- FeaturesMattress-in-a-Box
- Weight32.63 lb
- Compatible with sleeper sofaY
Reviews summary
Pros
- : Offers comfortable sleep surface at reasonable cost.
- : Provides a gentle sleeping surface.
- : Requires little time and effort to set up.
- : Provides a comfortable surface with right firmness.
Neutral
- : Can be too soft for some, but also provides excellent support for others.
How do you want your item?
About this item
Product details
- Mainstays 10” Medium Firm Memory Foam Mattress, Twin
- 10” PROFILE: Designed to fit seamlessly in primary rooms, guest rooms, teen rooms, and a variety of other sleeping arrangements
- ALL SLEEPERS WELCOME: Medium feel ensures side, back, and stomach sleepers alike wake up refreshed and revitalized
- BREATHABLE COVER: Soft, durable fabric enhances airflow and comfort
- SPECIALTY INFUSIONS: Green Tea Infused Memory foam and Liquid Gel Flex Foam adapt to your body throughout the night leaving you cool and comfortable
- MOTION ISOLATION: Enjoy undisturbed sleep with motion isolation that minimizes movement transfer from one side of the mattress to the other
- COMPATABILITY: Compatible with platform beds, slatted frames, adjustable bases, or a traditional box spring for versatile support
- MEETS SAFETY STANDARDS: CertiPUR-US® certified foam ensures the mattress is free from harmful chemicals, providing a safe sleep environment for all ages
- SHIPS IN A BOX: Ships compressed and rolled for easy delivery—just unbox, cut the plastic, and allow 48-72 hours to expand fully
- Assembled Product Dimensions: 74” L x37” W x 10” H
- Package Dimensions: 11.8” L x 11.8” W x 40.16” H; Weighs 32.7 pounds
- Best suitable for teens and adults
Specifications
Mattress type
Mattress comfort level
Dimensions
Features
Warranty
Warranty information
Warnings
State Chemical Disclosure
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Customer ratings & reviews
Reviews summary
Pros
- : Offers comfortable sleep surface at reasonable cost.
- : Provides a gentle sleeping surface.
- : Requires little time and effort to set up.
- : Provides a comfortable surface with right firmness.
Neutral
- : Can be too soft for some, but also provides excellent support for others.
Customer photos






+164 images
Showing 1-3 of 1,094 reviews
Verified Purchase
This mattress exceeded my expectations for the price. It arrived well packaged and expanded quickly after opening. The 8-inch thickness provides good support while still being comfortable, especially for sleeping on my back and side. The medium-firm feel is balanced, not too hard and not too soft. It offers great value for money and feels durable and well-made. I've been sleeping much better since using it and would definitely recommend it to anyone looking for an affordable and comfortable mattress.
Verified Purchase
Love it !
So I waited a copy of days to post my opinion! Me and hubby were having trouble getting rest ..so I decided to buy this item …let me tell you it is very comfortable. It expanded amazingly well maybe even bigger.. I follow all instructions—- no smell ..All comfortable I got a queen size price was good. Thank you
Verified Purchase
After letting the mattress sit for about 36 hours, we tried it out for one night. I have terrible back pain from my work but this mattress was like sleeping on clouds. Very comfortable


