I’ve been using a 40F Montbell Superstretch Down Hugger back for about a decade. I chose this bag because I’m a mobile sleeper and like the way it expands with movement and to accommodate insulation layers. I’ve found that the 40F rating combines well with whatever insulation layers I’ve chosen for conditions – in other words, it’s worked as a sleeping system.
The bag needs replacing at this point and, being ten years older, I’m considering replacing with a 30F Montbell Hugger. I’ve never owned a quilt but am attracted by the lower weight of the Revelation and similar. I use a 20 inch wide Klymit Insulated Static V UL for 3 seasons.
As I’m wearing a down hoody while sleeping in cold conditions anyway, I’m not too worried about lack of hood on a quilt, but am wondering whether the weight trimmed with a quilt will be offset by the need for additional insulation to overcome drafts and generally decreased thermal efficiency. In short, I don’t know much about quilts and would appreciate any opinions about the pluses and minuses of them as compared to the stretchy Montbell bags. I probably wouldn’t consider any other type of enclosed bag, unless it had a similar expandable nature.
