I have only had him for a couple days. 3 nights so far and I find it werid that he sleeps standing up against the glass. I thought maybe I needed more heat at night, but my place is at 70 degrees all the time. I was going to try and leave his basking light on to see if he would sleep on his branch, but even before the lights went off he is back at a corner standing up sleeping. Is this normal? He has decided bedtime is between 8 and 8:30pm. He even falls asleep before lights out.