The Cool Pad feels surprisingly cool at room temp and is made with a plant-based cooling phase change material that refreshes at room temperature when not in use; no refrigeration required. The Cool Pad is shown to be effective in helping calm hot flashes and night sweats and providing soothing relief for back aches and pains. Octa-Cooling 80 degrees material is designed to deliver a refreshing rush of cool relief when it comes in contact with the hot temperatures of your body. As the Cook Pad absorbs your body heat, the coo while cells become clear in color. Safe to place directly on the skin. Fits inside most standard pillowcases. Latex free. To clean, wash with mild soap and water then air dry.