like the other person asked have you changed the bedding thats a great question as maybe something bothering him/her .

I keep mine in the backyard enclosed patio its in shade but warm(in screen enclosure )most of the year (Miami) and the activity level is way higher than when I kept him inside at same warm temp.

Is yours near a window ,etc as they love the rainy days they are just more "alive" . I dont know if you want some type clear plastic storage box and than you put screen top on that . I mention this because they dont bang themselves up like they will with glass .