The new Gel Dough + Dual Z Gel pillow comes to ensure a cool night of rest. The pillow's unique combination offers maximum cooling by capturing and dissipating heat with two liquid Z Gel layers placed on both sides of the pillow. The unique Gel Dough memory foam enhances the liquid Z Gel layers with a softer, cooler memory foam creating multiple touch points to relieve heat.�Accompanying the pillow is a luxuriously soft rayon from bamboo velour cover, excellent�for sensitive skin and temperature regulation.