So I’m headed to Flagstaff this week end and it’ll be chilly like 18F. We’ve done 30 but not the teens. I’ve swapped out my heater buddy for a big buddy. Got reflectix for all the windows, on the ends anyway, my Cape Cod has hard sides. As well as reflectix under the 2 mattresses. Any other tips? And my water tank is inside so no freezing but what do you guys do for the ones hung under the trailer?