Join Date: Dec 2010
Location: North East, England
Chins do tend to sit and nap quite a lot, yes they are nocturnal but not like hamsters who will be active constantly all night. Chins tend to wake at tea time, and sleep from dawn most of the day, but will nap during the night too. Best time to try to interact is probably around dusk.
I have eye problems with one of mine and need to keep a check on how he is eating so I leave a small (but enough for all night) amount of food for him then I can more easily check that he is eating, whereas with a full bowl you will not know - same with the water just check the level regularly.
If your chin is not eating or drinking I agree its vet time straight away.