mini mass rocket furnace for a tear drop camp ? possible ?

i have been beeting my head in trying to figure out a no cost (not gas or electric or anything i would have to pay for) way of heating a space the size of a queen size bed thats the size of my tear drop sleeping area i want to build some kind of rocket stove for it it hold heat very well so it will not take much at all but i cant seem to wrap my mind around it on how to make it small like i want i figured the best thing was to talk to people with experiance in this area and i think this is the best place there is for that any help would be great

what i want to do is some how support it on the wall away from my head

unless some one has a better idea i am planning on wraping the area around with berlap the and then brushing a cement latex sand mixture to fire proof the area to keep things safe and also to add to a mass of some kind this also will help in keeping it lite

would i need a fresh air intake with a space this small

temps i will be in at the most would be 20-30 deg's maybe a little lower

i live in tennessee but am looking to camp in other areas also

it could be that this is not possible but i am will to try anything

thanks in advance for any advice you might have good or bad

Mass heat storage and lightness for portability are simply not compatible. You can have one or the other. The only reasonable possibility might be water as a storage medium, if you are able to dump it for travel and refill when you stop. And putting a thin layer of noncombustible material over wood will not protect it from long-term heat damage, including eventual lowering of the combustion point so the wood burns at what would seem to be a safe temperature.