Sleep in your underwear or naked. Sweating will equate to a bad experience. Since you have a shelter available, you can get away with a warmer bag, IMO. If you are hoofing it in, weight will be a consideration. I have hunted a few times up around 10-13K feet. It was beautiful but a ton of work.

Good luck brother!


Been here long enough to go from "bring 'da pain" to " bring 'da pain meds.