Ours has also been showing signs of wanting to hibernate, which it has never done in the previous five years.
Its digging down as deep as it can late afternoon and not waking up until late morning.
A few big terribly sorry old boy, I am a little tireds, a nibble on its food, and it sits around doing nothing much and then digs down for an 18 hour sleep again.
I wonder if the internal Barometer tells them its going to be a cold hard winter ?
My Arthritis is certainly letting me know the weather is going to get colder.
Soon be time to gets its fridge set up ready for the long sleep.
Come next spring it will be chasing me around the garden again, trying to shag my Crocs.