Offering the body-contouring comfort of advanced memory foam with the targeted support of individually wrapped coils, the Therapedic Olympus's plush hybrid design combines the latest in technology to deliver your best night's sleep yet. This premium plush mattress features TheraCool Graphite Phase Change material right at the sleep surface, providing the body-hugging feel of memory foam while incorporating thermoregulation qualities to provide a cool, comfortable sleep environment. An additional layer of TheraCool gel memory foam enhances these temperature regulating features while providing an indulgently plush, contoured feel. At the mattress core, TheraWrap individually wrapped coils flex independently to provide targeted support to the areas that need it most while also reducing motion transfer, so you won't be disturbed when your sleep partner moves. The TheraFoam foam encasement surrounding the mattress expands the sleep surface by creating a more supportive mattress edge. 15 Year Limited Warranty.