GPigs like the temp about 70 degrees but can handle down to 65. You may give her a small fleece blanket to cuddle under since she has no mates. Or a small box filled with shredded paper. Please keep,her away from heat vents, wood stoves and certainly heat lamps. A small sock filled with rice and heated in the microwave will stay warm for a couple of hours but please wrap it in a towel to keep from burning. Make sure she is out of drafts, even if you have to cover the top of her cage with a blanket for the night. Make sure she gets plenty of vitamin C. I have had several G Pigs and find them very social and sweet.