I have been using a quilt instead of a sleeping bag for bout 3 years. I have used my 30 degree quilt down to 10 and up to 50 comfortably, with the proper layers. Its really contributed to a lower base weight, all while being cheaper and more versatile than my mummy bag. People always seem to be wary of quilt conversion so I am asking you guys what your biggest question are about quilts.
Happy trails
Matt