Originally Posted by Take-a-knee
Mine modifed to a quilt, 48in wide at the top, shortened to 67in OAL, with all down from the removed draft baffles added to the body weighs 26oz. It has 1.5in baffles but the baffles loft to 2.5in with all that down added. It is likely 600 fill/1.9oz fabric so it weighs a few ounces more than a JRB quilt would weigh.
This is kinda what I was thinking about. At least seeing if I could add some more down to increase the temp rating.