Chillow Cooling Pillow for a Relaxing, Restful Sleep Hampton Direct easy to use cool pillow slips under your existing pillow case for instant comfort Natural water cool gel pillow system provides the perfect cooling temperature Cooling pillow provides fast relief for flu, fever, headaches, hot flashes, sunburn, back pain and more Chillow is your own portable personal cooling system that goes anywhere Cloth side for comfortable coolness and shiny side for even cooler conditions. Chillow measures 21" Long x 12" Wide