Jason wrote a review of Big Agnes Grouse Mountain Sleeping Bag: 15 Degree Down on June 17, 2012
I am amazed that someone even rated this bag poorly. Have had this bag out on 2 trips thus far since purchasing and have been extremely warm and comfortable at 23 and 36 degrees Fahrenheit. Big Agnes is definitely the way to go! Sleeping pad and bag are both very light and compact and barely make a dent in my pack.