Mattress pads work to regulate temperature by improving the breathability of the mattress and allowing improved air circulation underneath the sleeper. In addition, they will incorporate materials designed to wick away heat and moisture to help keep the body cool and comfortable throughout the night.Mattress pads work to regulate temperature by improving the breathability of the mattress and allowing improved air circulation underneath the sleeper. In addition, they will incorporate materials designed to wick away heat and moisture to help keep the body cool and comfortable throughout the night.