This is the down pillow that stays cool throughout the night. Its temperature regulating cover is made from a polyester-based material blended with a proprietary mix of mica minerals. Each individual thread has a series of integrated cooling tunnels that help circulate air and dissipate body heat. The pillow is filled with double-washed white down that cushions the head to provide optimal support and comfort. The cover is machine washable and dryable and treated with antimicrobial silver chloride that inhibits bacteria, mold, mildew, and odors. Medium firm. White.