Lightweight and fully washable, our Cooling mattress protector provides a 5-sided barrier for the top and sides of your mattress against moisture, allergens, dust mites, mold, mildew, and stains. Designed to provide responsive, cooling coverage across your sleep surface throughout the night, our award-winning Cooling mattress protector features mineral-based FRíO^® rapid chill cooling fibers that channel your body heat through each cooling thread, moving heat away from your body before it can accumulate in the bedding surrounding you. It’s just one more reason why our premium protectors are the official protectors of the Women’s Choice Award and the National Sleep Foundation.