Lee E.wrote a review of Big Agnes Lost Ranger Sleeping Bag: 15 Degree Down on October 31, 2011
My experience mirrors some of the comments below. WWW.intellicast.com reports that it was 37 degrees F three nights ago when I last used the Lost Ranger. I was cold wearing lightweight long underwear, clean dry socks and a skull cap. I love the concept of BA's pad-in-a-sleeve and the dimensions of their Classic (wide) bags but the temperature rating isn't even close. The same thing happened to me last spring at Enchanted Rock (Texas Hill country) but I thought it was just me. Thankfully, I have REI's return policy to help me get a warmer bag. It will almost certainly be a BA bag.