I should add that I am constantly tossing and turning at night so the Stretch bags or a quilt is what I have found works best for me.
A big +1.
I fight a bit of claustrophobia, and the stretch sure helps with the tied up feeling in a mummy style bag. Nothing like waking up in a panic in the middle of the night. I have a 0 (Red) and I think 30 (Green) degree bags. Had them for years so can't remember the exact numbers.
