The ChiliPad Cube is a microclimate thermostat control system that COOLS or HEATS any mattress. This system allows you to control the temperature of you sleep surface like you do your home or car. Simply set the Cube to your preferred temperature, between 55F/13C and 110F/43C. By controlling the temperature of the water that continuously circulates through medical-grade silicone tubing in the pad, the perfect sleep climate is available to everyone. It is available in both single and dual zones.