I personally believe a 41qt is too small for a completely healthy happy snake of any size but in practice it's plenty large enough... I use 41qts for all of mine because although it might not be optimal they do work and the snake can do well in them. I have some shy eaters that I have to do that same trick to get them to eat. It's probably a personality thing that is particular to your snake and nothing will probably change it I'd imagine. I'm sure it's a good thing that she is starting to move around at night, so you know she is ok. It could also mean she is hungry so perhaps try feeding her the night after you see her cruising. If I feed them the day after cruising though it seems to work. She could also be getting ready to drop a present for youWhat ever the issue is I'd imagine your snake is more relaxed now with the hide.