Last night in the mobile home made of plastic. Is it warm inside the shelter?

Testing a mobile home made of film: will it be warm inside the shelter if there is frost in the forest? I came to the forest in winter and brought my homemade shelter on a sled. I additionally covered it with fir branches and straw and prepared a huge fire. In the evening I lit a fire and fried sausage and bread. It was quiet in the forest around me. Solo camping was relaxing. I like to survive in the forest, especially in winter. I compared the thermometer readings; near the fire it was 2 degrees Celsius, and inside the shelter it was 24 degrees Celsius. The film transfers heat from the fire and accumulates heat inside the house. It was warm and comfortable to sleep. In the morning I dismantled my shelter and dragged him to my forest camp. I put the hay on the floor of the dog house and the video ended. So I spent time in the forest when the snow began to melt and winter ended. Enjoy watching and thank you for being with me #mobilehome #shelter #survival #wintercamping