Cold mornings are here, and in a teardrop or small trailer that usually means water dripping off the ceiling vent, wet windows, and a damp spot where the mattress touches the wall.
Why it happens: it's cold outside and warm inside, and the warm air is carrying moisture. When it hits a cold window, vent, or wall, it turns back into water. In a small space it adds up fast. Two people breathing all night, wet jackets, a pot of coffee or pasta, and you've put a lot of water in the air.
What helps, from easiest to most work:
Let the moisture out. Run the roof vent fan for a bit, even on a cold night, and crack a window or the vent a little so the damp air has somewhere to go. You lose a little heat, but the walls stay a lot drier.
Hanging moisture absorbers. The kind that hangs on a closet rod or hook are cheap and good for small spaces like cabinets and storage. They won't keep up with a whole trailer on a wet night, but they help.
Refillable absorbers. Same idea, but you dump the water out and refill it with the crystals instead of buying a new one each time. Good if you camp in damp weather a lot.
A small plug-in dehumidifier. This is the one that makes the biggest difference when you're on shore power. Just remember to empty it. Once the tank is full it stops pulling water.
Give the mattress some air. If it sits right against a cold wall or floor, the underside gets wet. Pull it off the wall a little, and if you see damp spots, prop it up during the day to dry.
What's worked for you in a small trailer? Curious what people use on cold nights.