Following bathing Charlie I put him on the carpet and whilst laid watching him on the floor he snuggles into my dressing gown. So cute I can't move him!!!
What was the temp? Maybe he was a little cold. I know my little guy didn't go into his hide at all when we first changed out the original cardboard box his old people had in his enclosure. Now he goes in almost every night. Maybe he is just figuring out where he likes to sleep best. Sometimes Archimedes will fall asleep wherever he has walked to, I had to pull him away from his water one day because I was Nervous. There is less than an inch of water but I had it in my head he was going to fall asleep in it the way he was starting to close his eyes and nod off. I'm sure Charlie is just getting used to his expanded new home.
They take time to adjust to their new home. It looks like a very nice place you got him, just give Charlie some time to get used to it and I am sure he will fully appreciate all your efforts