LIFEMENT E-MT-MEM-12-F-03 12-Inch Full Memory Foam Mattress

Choosing a mattress for everyday sleep often means balancing pressure cushioning with dependable support. For a guest room or a growing household, an easy-to-set-up mattress with a familiar full-size footprint can be just as important. This LIFEMENT model combines a medium-firm feel with adaptive memory foam and a breathable bamboo-blend cover.

The 12-inch profile gives the foam room to contour to the body while a high-density base helps support it. Use it in a main bedroom, guest room, kids’ room, or dorm, on a compatible bed frame.

Size & fit

This is a full-size mattress measuring 75 inches long, 54 inches wide, and 12 inches thick. Its medium-firm feel is intended to cushion the body without letting it sink deeply, making it a practical middle ground for people who want both contouring and support. The memory foam responds around pressure points such as the shoulders, hips, and lower back, while the support foam beneath helps maintain an even sleep surface.

It works with platform beds, bunk beds, slatted bases, box springs, and adjustable frames, and does not require a box spring. For setup, unroll the compressed mattress on its bed frame and allow up to 72 hours for it to fully expand. The 12-inch profile is also worth factoring in when choosing fitted sheets.

Benefits

The breathable bamboo-blend knit cover is designed to wick away moisture and encourage airflow across the sleep surface. Gel memory foam adds contouring comfort, while the high-density support layer is infused with loess powder. Together, the layers offer a balance of cushioning and support for back, side, and stomach sleepers. The foam construction also absorbs motion, a useful feature when a partner changes position during the night.

The mattress is fiberglass-free, and its foam is CertiPUR-US certified. Its boxed, rolled format makes it easier to bring into a bedroom or dorm than a full-size mattress delivered unfolded. Buyers describe it as comfortable and report positive sleep experiences, while feedback on firmness is mixed: some find the feel balanced, and others consider it firmer than they prefer. That range of reactions makes the stated medium-firm feel an important part of the decision.

Technical details

• Size: Full
• Dimensions: 75 inches long x 54 inches wide x 12 inches thick
• Firmness: Medium firm
• Construction: Memory foam with gel memory foam comfort layer and high-density support foam
• Cover: Breathable bamboo-blend knit
• Features: Temperature regulating, low motion transfer, fiberglass-free
• Certification: CertiPUR-US certified foam
• Care: Spot clean only, not washable
• Warranty: 10-year limited warranty

Buying verdict

For shoppers choosing between a more rigid sleep surface and a deeply sinking foam feel, this mattress offers a medium-firm approach with contouring at pressure points and a supportive foam base. Its full size, motion absorption, and breathable cover suit everyday bedrooms as well as guest spaces where comfort and straightforward setup matter. Worth considering if you want a 12-inch memory foam mattress that pairs body-conforming cushioning with a balanced, medium-firm feel.