Here is a water powered heated mattress pad that keeps you comfortable throughout the night. The Navien Mate Dual Control Heated Mattress Pad (EQM 580) allows for separate heating zones for couples. You can control it with a remote or smartphone over WiFi. It has an ultra-thin pad not to take away from your sleep.
This smart heated mattress pad comes with voice guidance and high temperature notification. It also has an automatic timer, balance sensor, and other safety features. In sterilization mode, hot water is circulated through the heating unit and pads to get rid of any possible germs.[where to get it]