Cold weather camping and sweating in closet

All of these responses are appreciated. Of course we didn't have the vents open...it was cold outside! LOL! I see the point on the vents and will make sure they are open slightly in the future. Also good point to watch for window condensation as a first warning. Any type of dehumidifier you guys recommend? We plan on camping in the mountains quite a lot, so I needed to be up to speed on how to keep this from being an issue down the road. I will pick up some of the jars of dehumidifier to put into the closet also just to be safe.

Oh, and ScottG, thanks for the tip on checking my pulse! Funny!