Switched to a EE zero degree quilt last year. Was skeptical but wanted to see if I could really shave over a pound off my sleep system.
Wow. Loved it. Don't use any of my mummy bags until I get down to bear camp on kodiak! No drafts of any concern, I can roll around and my quilt don't twist up, my feet are much warmer than in my mummy bag. I use a neo air sleeping pad. Not the warmest set up in cold temps but very comfy the rest of the time.
I'd buy another quilt before is buy another mummy bag.
