Not exactly what you are asking for, but it is cheap. We depend on the bedding to keep us warm at night but don't like to get up in the cold. I took the existing thermostat a part and attached wires inside to the on/off switch contacts and ran them to a spot I could reach from bed and installed a mini-toggle switch. The wires can be very thin not much current flowing. I leave the thermostat set to a reasonable temperature and the on/off switch set to off. Now I wake up and if it feels a little cold, I just reach out and flip the toggle switch and take a short nap till the temperature is about right.