I've used this bag over the past eight months in a variety of conditions, with two trips in the 40s. I was comfortable to the low 40s in a Capilene 2 long sleep shirt, beanie, and light polyester pants (no socks), but I'm a relatively warm sleeper. On warm trips I open the bag up and use it as a quilt with no real difficulty.
I'm a very restless sleeper and this bag lets me move around without wa
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