Laura, I'm sorry to hear that Amy is feeling so poorly. I also don't know anything about CH but I agree that maybe you could get her some kind of heating pad to sleep on. It doesn't have to be the electric kind because there are some that you can heat up in the microwave and the heat will last for many hours. Here's a link to one: http://cozywinters.com/shop/snugglesafe.html. I hope that she'll start feeling better soon. I'll keep her in my thoughts and prayers.