The v9 Gel Foam Mattress is made of gel beads that are infused into foam creating an open cell structure that promotes air movement. The heat from your body dissipates instead of collecting within the mattress. This helps maintain a cool, comfortable temperature all night. Gel foam also provides a firm and relaxing sleep surface. The mattress fits to your body without letting you sink too deeply. The knit cover, woven with Tencel® yarn, wicks away moisture and is further enhanced by a cooling fabric treatment. No matter what's been keeping you up at night, our gel foam mattress can help.