Snakes will rarely curl up next to a sleeping camper. It happened to me once, but fortuneately the snake was more torpid than I was come sunrize ( and much more sociable). Usually their heat sensors says" big dangerous animal" and they move on. The tent would require a waterproof floor and sill to eliminate both problems. Your problem is going to be weight since your backpacking. Modern tents are pretty light . I use an old " cowboy teepee". This is a canvas pyramid with 4 stakes and either a internal center pole, or two "A" frame external poles. It really sheds water and wind. Some of the makers are incorporating newer fabrics that are light in weight and mildew/ ultraviolet resistant.<br><br>