I should also add that I turned on the heat lamp this morning so where he is right now is 90. The floor was a little warm, so I turned it down (but still not over 94ish). It's not a particularly cold day but I worry that he won't be warm enough up where he is.
His tank also has a blanket around all sides but the front so it feels pretty secure I would imagine. I don't know if that makes any difference to him.....