one of my chinchilla seems to zone out from time to time, she just tilts her head looking at one spot and not do anything at all.. i figured that just how she was because after my other chin bumps into her, she just gets right back up and tilts her head again and sits there. I don't think its anything serious that you have to worry about, but maybe someone else here might have a better answer because i really didn't answer your question

. Just from what i've noticed from time to time.