Green Tea Gel Aerofusion Memory Foam top keeps the sleeper cool while the Flex Support Base Foam promotes better sleep. Bamboo cover is hypoallergenic, environmentally friendly, and more comfortable than ordinary mattress cover, plus it's removable.The high-density foam can change the support strength according to the body weight for a more comfortable sleep.Mattress conveniently shipped in a box for easier maneuverability into home and room.Designed for use with or without box spring.