The Sierra Designs Backcountry Quilt has an interesting and very effective "Hood"
I have well over 30 nights in my SD and I prefer it and my Neo Air Xtherm to my regular bed at home. The SD is only good to around 30 F without supplementing it.
It isn't the lightest but is my favorite of the 3 or 4 quilts I have tried.
I think like Brad stated, with a quilt go with a wide width or else you will get drafts unless you sleep like a mummy.

http://www.sierradesigns.com/product/backcountry-quilt-800-2-season


Ed T