Sink into our 12" Memory Foam Mattress. The top layer consists of .3" of Memory Foam knitted into the cover, followed by 2.7" of Open Cell Memory Foam followed by 9" thick of Pressure Relief Memory Foam that helps to eliminate pressure points you are experiencing specifically with this 3 important areas: head and shoulders, hips and feet for you to acquire harmonious sleep. The bottom includes an anti-slip cover that guarantees minimal injuries and mishaps you could possibly get with a non anti-slip cover. This 12" Memory Foam mattress provides substantial support, resiliency and helps eliminate heat that can sometimes be associated with Memory Foam Mattresses. Features: 12" Queen memory foam mattress Consists of .3" of memory foam cover, 2.7" open cell memory foam, 9" pressure relief memory foam Eliminates pressure points in head shoulder, hip and feet areas Includes anti-slip cover Dimensions: 80" L x 60 W x 12" H Memory Foam Tips: Remove from packaging within 72 hours of receipt to maximize memory foam expansion. This product arrives very tightly packed. Unwrap and allow 48 hours for this product to return to its original shape. Being sealed in plastic packaging sometimes traps odors. After unwrapping, allow product to air for a few hours. Due to machine-cutting manufacturing processes, there may be slight variances in the dimensions of this product. Due to the nature of Memory Foam the firmness level of every item is unique. Please be advised that even similar products may produce different firmness results. Once opened this product is not returnable