Originally Posted by Knotty
I don't believe down will actively absorb moisture in the air but it can become damp when the conditions are right for condensation. I've read that in mountaineering it's a good practice to immediately stuff your sleeping bag after you get out of it in the morning. That way you push out the warm, damp air from your body before the bag cools and the moisture condenses and possibly freezes.
So,the down itself dosen't absorb any significant moisture?Any mountaineers care to weight in[or anyone who has used this method]?