I slept really cold at most camping events last year so I decided to try something different. I went to Fred Meyers and got one of those silver safety blankets for $2. I put it on the bottom of the tent, then my blanket, the air mattress, and another blanket, then my sleeping bag. I’m happy to report that it worked quite well and I was warm the entire night. I’ll have to wait and see what happens at a colder event, but I’m pretty happy for now.