you dont have much of a temp gradient so why would he move? You need to get your warm side up and then you should see him switching hides more often. Hes probably not moving off the warm side bc hes not warm enough to want to move. Some of my snakes will chill on the warm side for the night and then switch to the cool side during the day... If hes not warm enough to want to move to the other hide why would he? Pics make it easier to give you a better answer bc then we can see how your set up is.