Chillow® Keeps your body cool while you sleep! Ice packs are too cold, wash cloths are too wet, but the Chillow® Is just right! Pair it with your favorite pillow for a soothing night's sleep, or use by itself to relieve nagging aches and pains. Activate by simply filling with regular tap water and, like magic, the cooling sensation begins! The Chillow® Is ideal for headaches, hot flashes, sunburns, back pain, and other ailments. While not required, it may be refrigerated briefly for added cooling effect. Non-toxic, non-gel, latex- and phthalate-free.