The pillow that keeps you cool If hot flushes & night sweats keep you awake, try the Chillow for a cool, restful night’s sleep. With its water-activated, technologically advanced filling Chillow absorbs heat from your face. Cleverly, this unique, patented pillow stays cool rather than cold. It is so comfortable & calming that some users find it relieves headaches & migraines, & it works wonders with fever & hot flushes. This self-cooling pillow is particularly useful if you are going through the menopause or receiving chemotherapy & it comes with a 30-day moneyback guarantee.