I have settled on getting a WM bag, but am trying to decide between the Ultralite and Summerlite. I don't plan on doing a lot of winter trekking with it, but do trek in the Western states and some nights get into the low 30s or high 20s on occasion during my season. I tend to be a warmer sleeper.
Additionally, I am 5'11" and 165 pounds – would you recommend the 6'bag or the larger size? I tend to sleep flat on my back but do roll a bit.
Your insights on Ultra versus Summer and size will be most appreciated. Thank you.
