Night Therapy MyGel 8 inch Memory Foam Mattress, Full Sleep cool layering system-2 inch MyGel Memory Foam, 2 inch Pressure Relief, and a 4 inch High Density Foam Support layer Foam is CertiPUR-US Certified for durability, performance, and content Our patented compression technology allows our mattresses to be compressed, rolled and shipped in a box via FedEx Foam is CertiPUR-US Certified for durability, performance and content Night Therapy mattresses are clinically proven to help you fall asleep faster, and sleep more soundly