Thanks for the thoughts! So I'm fresh from CO and from being completely addicted to hut trips I have a fairly limited winter overnight kit going. I'm back to being a student, so cost is a big factor.
Mostly it'll be volcano overnight trips and overnight ski tours (planned overnight). was planning on just doing a DAS parka, insulated pants, then maybe a 40deg bag over all that if needed. Sleeping in a mega/betamid. From one wet & snowy trip last year, synthetic pants would have been good to throw on under my shell when sitting around and drying out. Don't want to have excess insulation so thought that combo might work. I layer pretty light when active.
Maybe just a DIY a half sleeping bag w/ synthetic insulation might work just as well in combo w/ the das parka.
Thanks again for ideas!