Rating: 5 / 5
I've slept under this quilt at temperatures down to 8ºF (-13ºC) on an Exped Synmat UL 7 LW in a homemade Tyvek bivvy under the stars. I was warm. The 10D fabrics I chose for both inside and outside combined with the high quality down fill, mean that the quilt drapes very softly and conforms to the sleeper's body. Except for the warmth, this quilt feels almost imperceptibly light. It weighs 19 oz.
By the way, its temperature rating is 20ºF.