CHILLOW® lets you enjoy a cool night's sleep! Innovative cooling pad can be used over your pillow or inside the pillow case to absorb body heat and maintain a consistently cool temperature while you sleep. Simply fill with water, chill in fridge and experience soothing comfort all night long. Provides excellent relief for hot flashes, night sweats, fever, headaches and sunburn, too. Made of soft non-toxic, hypoallergenic, latex-free material with no-leak PVC plug. 21" x 12".