When the mercury drops, I still like to hike and camp. I really like settling down all cozy, dry, and warm in my bag each night.
But the mornings are different. The vast majority of mornings I wake up with noticeable condensation in my down bag. It's not uncommon for me to sit up in my bag, and where the crease is near my waist, visible water is forced out. Well, enough to make the shell fabric damp. I actually thought I spilled some water on my bag one morning.
It's also bad near my feet. I can just feel the moisture if I squeeze the footbox.
I can't find a pattern to when this happens either. I try to vent my bag as much as possible, but when its really cold, I have to zip up.
I'm using a Marmot Pinnacle 15F bag.
I'm normally not an overly-sweaty person, but I do tend to sleep warm.
Winter season is coming and I'd like to try and remedy this. Must I get a VBL system? Is this normal?