So i've been backpacking for quite some time, but never winter backpacking which is something i want to get into.
I am just about to pull the trigger on a -20 bag so that regardless of when i want to camp during the Wisconsin winters i'm covered, but i was pondering the layering idea. Has anyone layered multiple sleeping bags to accomplish a warmer bag?
I currently own a Mountain Hardware 2nd Dimension bag (15 deg), a custom Enlightened Equipment Enigma Quilt (10 deg) and a Aegis Max down bag (50 deg). So i'm wondering if i would climb into my Aegis Max, then into my Mountain Hardware bag and finally pull the quilt over the top if that would get me a system that could handle below 10 deg?
All of this would of course be paired with my Big Agnes Air Core mattress which has a 4.1 R value.