This Medium Gel Memory Foam Queen Pillow has been designed with a layer of gel on one side and memory foam on the other side. The gel overlay and air holes throughout the entire pillow provide maximum comfort and ventilation creating that refreshing cold-side feeling. This classic pillow design is recommended for the side, back, and stomach sleepers. The solid memory foam core, cool gel layer, and pin core holes provide the necessary support needed for a cooler-restorative night's sleep material memory foam solid memory foam core cool gel layer pin core holes to promote maximum air circulation and dissipate heat removable, washable, zippered polyester cover.