Ventilated Gel Memory Foam with Reversible Cooling King (Pack of 1) Pillow. Gel Memory Foam COOLING GEL INFUSION: Memory foam is infused with temperature-regulating gel for more comfortable sleep conditions TWO-SIDED COVER: One side is cool to the touch to help instantly dissipate body heat and the other side is neutral for customizable comfort PRESSURE RELIEF: Memory foam provides superior pressure relief and comfort, and the 5-inch loft supports all sleep styles BREATHABLE DESIGN: Ventilated design optimizes air circulation for prime airflow and temperature control MACHINE WASHABLE COVER: Removable cover is machine washable for easy cleaning and care.