temperature in the room is around 70 degrees both day and night. I have actually been using a small electric heater to keep warmer in there for the little guy though. I am going out in a couple hours to get the digital and then I'll let you guys know the temps. Murrindiddi would the halogen bulb be in addition to the heat bulb or in place of? I can't thank you guys enough for taking the time to offer advice. I got horrible advice initially (keep him on sand, no thermometer, no gun light) but knew through my own reading it was wrong.