Hi,
What would be an UL sleeping system for high desert conditions. The temps will range about high 80's during the day, and around low 20's at night. It'll be about 3-4 days through-hike. I was wondering if a half-bag (i.e. Nunatak 8oz) with some kind down vest with down sleeves could be a good trade-off weight wise but do you have any suggestions? I'm not looking for a full winter sleeping system but a 3-season system that I can push in to the low 20's at night and not overkill on the weight side.
Another way to ask the question would be…if I had a nice half-bag, and it was 20F outside, what would be the lightest jacket -or layer-combo- but yet a good offset for the 20F temperature.
Thanks for your thoughts,
M.

