Since it's getting very cold over here, I'm a little bit worried about my hamster (Syrian) going into torpor. My heating is set to not go below 16ºC (60ºF), however this is costing us a fair bit of money which is where the issues start. He has about 5 or 6 inches of paper bedding, and has a blanket covering 1/2 of his cage during the day. Is there anything else I can do to keep him warm? Thank you