The Manhattan 8" Memory Foam Mattress is made from 2-layer memory foam with a 100% polyester hand-sewn white over slate cover. They are hand-crafted in the USA using environmentally friendly bio-grade foams and sustainable manufacturing processes. This modern mattress is odor and toxic chemical free, naturally antimicrobial, hypoallergenic and dust mite resistant. They have been designed to provide balanced comfort and support delivering a completely different sleep experience than an innerspring mattress. They have an open air flow memory foam for steady cooling, more surface conformation, low pressure points, improved spinal alignment, and isolation from your sleep partner's motion are additional benefits. The sleep surface is designed to conform to your body with minimal sinkage and it features two premium CertiPUR-US Certified foam layers.