So I've taken over taking care of my daughter's T since December. She has always had a night red reptile lamp on the enclosure 24/7. With summer I started turning it off completely. With temps dropping I now have it on a timer and have raised the level where is is higher from the glass.Temps since I got a thermometer go up to 78 degrees. She seems to comes out on her ledge to bask in it's warmth. Last night I had the timer go off at 4 am. This morning her enclosure was down to 68 degrees. It was 41 outside. I found her for the first time on the glass almost trying to go up to the lamp. I put the heat on in the house and it raised up to 72. Leaving for work, heat is off. Hope with the temps going up she will be fine. From what I have been reading, 68 should be fine but I think she is spoiled with the lamp. She is always on her ledge soaking in the heat. 2nd pic is after the enclosure warmed up a bit. 3rd pic is how the tank looks with the lamp. She is on her ledge. This was a few days after her molt.