The 10" Destiny is composed of premium memory foam, to help relieve pressure for a restful night's sleep at an affordable price. This bed features layers of NASA designed Memory Foam material to help relieve pressure points that can cause tossing and turning. Under the Memory Foam layer is a high density core designed to support your body. The Destiny memory foam mattress will allow you to "sink" in to it, relieving pressure, but will never allow you to sag, resulting in a more restorative sleep. The mattress has a premium Stretch Knitted Cover designed to be cooler than traditional velour covers.