In reply to Pedro50:
> I've just bought my first quilt, a Therm-a-Rest Vesper 20F -6C 572g. Not tested in the cold yet but I really like the huge extra freedom to move my arms around.
I've had one of those for a few years and I think the temperature rating is pretty optimistic. I still like it but it's not what it says and that makes it look like poor vfm. I keep meaning to get in touch with Thermarest about it and keep forgetting.