It shouldn't be. Ambient temp in the room hovers around 80-82 during the day and around 76-78 at night. Humidity stays higher at the top of his cage than the bottom because of the way I've got half the lid cling-wrapped. Everything evaporates then kind of gets caught up top.

The thing that stumps me is that nothing has changed since he started sleeping on the ground. I've had him about two years, and he's only been doing this for maybe two months (still occasionally sleeps in his tree, but mostly on the ground).