I've seen cold weather camping ideas in several different threads. But unless I've missed it, I haven't seen a thread where campers share ideas for camping in the winter. Maybe most use their pop ups in the warmer weather, since camping in pop ups is just so much nicer in the summer. It may be there is a thread about winter camping and I missed it, if so, sorry! But I'd like to try, and since today is technically the first day of winter, maybe I'll start one. So far, our preparations include buddy heater and lots of the stupidly expensive little green bottles of propane, a new and bigger battery and solar panel connection. The heater does a fine job of warming up the camper, but I hate to use the furnace all the time. I think I will add the foam mats people have suggested under the mattress for more warmth. I don't think I want to camp in weather much below, say 30 degrees, but can't always plan for that. We won't be camping in the woods or mountains, mostly desert type trips, but the desert can be cold too. One time we were camping very early spring in a pop up in the woods, and our water froze and another time we were caught in a snow storm. Those are fond memories, but not sure I want to do again.