I tried wearing my sweatshirt last night instead of using it as a pillow like I usually do, and I stayed warm until 6:00, half an hour before dawn. I crawled out of my tent and onto my bike and was in the warm Waffle House in minutes.
It was not a happy morning at the Waffle House. Near as I could make out, the shift that had just ended had left an overflowing dishwasher and a filthy grill for the new shift -- just one cook and one waitress to handle the morning rush -- to clean up. The food was OK anyway, and I was glad to have it.