42 posted 3 years ago by skanon 3 years ago by skanon +42 / -0 77 comments share 77 comments share save hide report block hide replies
Lived my entire life in Florida so I can't help.
I was reading a little info that indicated that Indians use to put rocks into fires and heat the up. I don't know how long rocks retain heat, but seems like one could take the heated rocks and put in sleeping bag, or under covers to help stay warm.