Experience unparalleled comfort and cooling with the Revive Optima Chill Medium Memory Foam 13" Twin Extra Long Mattress. Designed in a sleek grey color, this mattress combines advanced materials to ensure a restful night's sleep. The cover is crafted from a blend of polyethylene, polyester, and graphene cooling double jacquard, while the mattress itself features multiple layers of gel-infused memory foam and flex support foam for optimal support and temperature regulation.