Originally Posted by
Bekologist
That's not small,
THIS is small! 40 degree, 700 fill down sleeping bag. 20 ounces of warmth in a grapefruit sized package of warmth.
the OP should be able to get about the same type of weight from a semi rectangular bag from western mountaineering or marmot, or a topquilt from one of the prolifigate boutique makers out there.
down vs synthetic
cold when wet, still stays warm when wet
I've used that Kifaru stuff down to 34F without a problem, even when wet it still stays warm
I choose synthetic simply for the wet factor