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 Cool Pad absorbs your body heat, the cool white cells become clear in color. Great for wheelchairs and hospital beds. Safe to place directly on the skin, also fits inside most standard pillowcases. Latex-free and made in the USA! To clean, wash with mild soap and water then air dry.