Yes I have a Thermostat regultaing the UTH which is at 86 right now. Ambient temps were low around 75 due to the sudden winter we decided to have here in Nevada. It was seriously 80 degrees one day the 45 the next. So I bought an infrared light for night time temps. I just checked on him and honestly this is the most I have seen him out. He usually is still hiding in his warm hide this time of night. So i think we finally may have mastered the temperatures.