we are just coming back from a 9 day trip in the Appalachian Mountains. This was our first trip with our SS and we had a lot of fun! The weather was quite cold at night, between -5 to +5 celcius. It was around +8 to +18 celcius during the day. I noticed that our mattress (under) would get wet from condensation. The birch was also wet. But everything inside the underbed storage was bone dry. We had our fantastic fan running the entire night at low speed with the vent cracked open to one inch. Almost no condensation in the windows. We used an electric heater to keep the inside of the SS to around +18 celcius. I would have never noticed that without checking under the mattress just out of curiosity. Right now I'm thinking about removing the underbed storage and insulating the floor. Anyone experienced this kind of problem? Any solution?
Sorry for the celcius, I'm really bad with farenheit!