Originally Posted by
nsherry61
... Not even close. For instance, a Kelty 20 degree cosmic down bag is nowhere close to as warm as any of the EN rated 20 degree bags. And, Kelty is a semi-reputable brand name. I can't even imagine what a 20 degree Walmart sleeping bag might test out as in an EN lab.
Under what conditions will you be using the bag? Do you know if you want down or synthetic? It's probably worth going to your local outfitter and talking to them about bags so you can see and touch and try out and get an idea about what you want and want to look for.