This Tempur-Pedic mattress is 10 inches thick and provides a comfy medium-firm surface for people who want softness without sinking into their beds. This Flex Hybrid mattress features a true hybrid construction of a Dynamic Support Layer topped by soft, contouring Tempur material. The premium fabric cover with SmartClimate System keeps sleepers cool and comfortable throughout the night, and the response layer helps this mattress respond more quickly to changes in sleeping positions. The mattress cover can be removed and washed thanks to a hidden, easily accessible zipper. This mattress is a fantastic combination of Tempur-Pedic's best technologies.