GoEa New Blue Single Cooling Mattress Pad Cool Mat for Muscle Relief Night Sweats Actual Size:21"x12"(Product is folded inside box) Great for those suffering from hot flashes, night sweats, headaches, fevers, muscle aches even sore, tire feet! The cooling pad continuously circulates water to absorb and release body heat. Once activated the cooling pad will stay cooler that your body temperature, providing cooling, soothing comfort. Memory Foam Contours To Your Body's Weight And Heat For Perfect Support For Your Head And Neck. Reverts Back To It's Original Shape In Seconds