Posted: 05/10/2015 at 05:57
They don't really need it warm Marc - they need it dry and just above freezing. They need their body temperature to drop when they hibernate. If that's the place he's chosen I'd leave him be - he knows best. But you could put some other towels, rags, shredded newspaper, hay etc in there for him to snuggle into - and perhaps give the cat an alternative shelter if she thinks lodging with a hedgehog makes things a bit crowded.
I don't think our hedgehogs visited last night - the food doesn't look touched - I've found they get a bit erratic in their visits around this time of year.