Formed to fit the natural curves of your head, neck and shoulders, the ergonomic design of the Contour Gel Dough^™ pillow correctly aligns the spine for comforting sleep. Infused with temperature-regulating Z^™Ggel, the Gel Dough^® formula creates a cooler, softer memory foam. Accompanying the pillow is a luxuriously soft bamboo velour cover, excellent for sensitive skin and temperature regulation. Cover: 75% polyester, 25% rayon from bamboo Fill: 100% polyurethane gel foam