As we approach the end of summer and the beginning of fall its time to think about extending the camping season. Plus being a California baby I dont have much of a tolerance for cold-the weather gets below 60 degrees & everyone in the family bundles up like eskimos! So I have been doing my homework on how to stay warm in my pup on those cold camping nights when we venture up into the mountains or extend our camping season into November. So far I have cut out the aluminum bubble wrap insulation (Reflectix) for the windows and bought Gizmos for the bunk ends. I have also purchased a nice little Heater Buddy for warmth-but I cant run this little guy all night, it gives me about 3-4 hrs. running off a 16oz mini bottle of propane. I did notice that some of the newer pups are being sold with heated bunk ends and this gave me the idea of either getting electric blankets or heated mattress toppers to take some of the bite off camping on cold nights? I guess the real question is has anyone done this and what kind of drain would this have on your typical deep cycle battery when youre dry camping?