I've have a mystery I'm trying to solve right now... I recently bought a ten-degree sleeping bag (The Western Mountianeering Versalite). And I'm about halfway through the NH Whites, right now, on a flip-flop of the AT. The bag has been amazing so far (a huge improvement over the 30 degree quilt it replaced). But I'm noticing that, every morning, I wake up with the entire bag covered in small water droplets. The tent I'm using is the Zpacks Duplex. And it's well known for condensation issues (as a single-wall tent). Every morning I wake up with the inner walls of the tent covered in droplets as well. But I don't think that's the source of the problem since the floor of the tent isn't wet in the mornings. And neither is the gear I lay out on the floor for the next morning.
Is it possible my bag itself is creating condensation?? Could it be that I'm generating so much heat inside of the bag that condensation is forming from the cold air outside of it? What could be the cause of this moisture in the mornings? This is the second night in a row that this has happened to me after two damp (not non-rainy) days.
A small part of my sleeping bag is already completely flattened from this dampness. And I'd be in for a terrible night if I was pitching my tent again this evening... But luckily, I'm in town tonight. And the town has two great outdoor stores in it. Is this a gear issue? What do I need to do to stop this from happening? Thanks!