Thanks @Tom - do you think it will be a real issue for her not to be able to turn round? I don't want to do anything that may cause her any distress, but I didn't think they really moved during brumation. And even overnight in the summer she is always in the same position in the morning as she was when she went to sleep the night before. I did ask the specialist vet I saw recently and he said it wasn't a problem during brumation, but there's so much conflicting advice. I've even heard people say tortoises might climb out of a box during brumation, but surely not in a fridge at the right temperature as they'll be fast asleep?!My brumation containers do allow enough room to turn around, but not enough room to walk.
Sorry, first time brumating her in a fridge, and I lost my wife a few months ago, whose family first rescued Mort in the 1980s, so I'm particularly anxious to get it right.