[theolympian.com] I find that whenever I sleep outside with friends, I wake up with the most condensation on my bag. I have a 4-year-old 15-degree Marmot down bag. It is probably near the less-warm end of the spectrum of bags we use, but not outrageously different from everyone else’s. Why do only I wake up freezing cold and drenched? – Charlotte Muzzi, Duluth, Minn.

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