I use a towel to cover my top about 3/4 of the way with a 60 watt bulb and a heating mat both on thermostats. I would say that he is just roaming to get a feel for his safe spots. my BP romed for a couple days before he settled down to the cools side hide. I would say give him a few more days and see if he calms down a bit and if you get your temps up and he eats I would assume he is ok