Next school year, I would like to take Leezardo to school and be able to leave him overnight. Problem is, I don't have control of the room temperature. Is there a timer out there that turns on and off based on air temperature? I can get a ceramic bulb for night, but I don't want to overheat the tank. He is in our finished basement, and it can get chilly and this would be helpful at home, too. Anyone know if this exists?