Thank you, everyone. The Northface bag in question is zipperless, and very light and compact. The outer bag compacts pretty well. I like to read before crashing, so at the very least, I can use the inner bag while reading, with the outer as a pillow for elevation. Then, when I'm ready to sleep, I'll add the outer bag.

Finally me-still a bit unfamiliar with this forum-I thought I answered you, but maybe I didn't. Yes, I do realize the green bag goes with the black one, but I don't need that much warmth.