That depends, how are you heating the air?Lamp/CHE, or is that the room temp? If it's the room temp without any supplemental heat (space heater, etc.), I might try just taking away her hot spot and giving her 84-86deg ambient. I do this with my snake room in the summer because it naturally gets that warm in there. If you have a lamp/CHE, you can get a rheostat (dimmer) and dial it down, or a lower wattage bulb.