Phase change materials (PCM) are substances that absorb and disperse thermal energy. When used in mattress foam, PCMs help to regulate body temperature by absorbing excess body heat so you don’t sleep hot.
The patented PCM in our Contour5 absorbs and disperses heat from the sleeper without changing the temperature of the mattress layers. This also helps keep the mattress surface cool while regulating the temperature in the center third of the mattress. The PCM keeps that important lumbar zone several degrees cooler to allow for better support because a cooler foam means denser support.