Probably got a shock waking up to such cold weather,
How old is your tortoise? My friend has a 4 year old who's still really tiny and hasn't had its first hibernation yet. I understand that tortoises need to be 'taught' to hibernate. He (or she - how do you tell the sex?) lives in a flat and doesn't really have outdoor access and I'm considering keeping it in my garden this summer. I'm a bit worried because it's so small and I think it could escape quite easily - it would need some sort of enclosure because I also have a garden pond, not to mention 3 cats. Tortoises can actually move pretty quickly as I have seen. Otherwise, my friend thinks he will need to be re-homed, eventually, to a specialist tortoise centre which is a pity because she is really bonded with it - he's lovely with lots of personality. Her daughter brought him home when he was a tiny baby - I don't know where she got him because I believe young tortoises are rarely available nowadays without proper certification although I know they were kept quite commonly in households years ago.