KEEP YOUR BODY COOL: Thanks to an ingenious system using the principle of evaporative cooling, this bed cooler will help you sleep like a baby on hot summer nights. It will be your best companion to reduce hot flashes, night sweats and other sleep troubles related to menopause or pregnancy. SAFE AND EFFECTIVE: No wires or electromagnetic waves here, the B10 uses a chilled water flow circulating through high-grade soft silicone tubes to cool down the mattress pad (by 7 to 12 F) in the safest and most effective way. SOFT AND COMFORTABLE: Made of 100% cotton, the twin size mattress pad of the B10 is pleasantly soft so you can enjoy maximum comfort for a good night of sleep. If necessary, you can even add an extra topper. PAY LESS AND HELP THE ENVIRONMENT: This mattress cooling system uses only 8 Wh compared to 800 Wh for a standard AC which makes it really more energy efficient.