Cotton has lots of great properties for a tent fabric. Compared to man-made tent fabrics, cotton insulates extremely well. You won’t get as hot on a warm day, nor as cold when it is chilly. Cotton is a breathable fabric, and can absorb water. The fabric can last a long time and is more resistant to harmful UV rays.
Due to its weight and insulation properties, cotton tents can be quieter, and not so noisy if there’s a breeze. Cotton tents shouldn’t be coated with a waterproof membrane as polyester tents.
Poly-cotton is a hybrid between man-made polyester and cotton. Essentially a poly-cotton fabric is a cotton fabric with some polyester weaved into it. All the good qualities of cotton can be found in poly-cotton tents. They have some of the bad points too, but the polyester in the weave makes them slightly more resistant to mildew than pure cotton , and the polyester also helps reduce the risk of large rips.The cotton or poly-cotton tent will feel a lot warmer and quieter than the polyester tent. It will feel like a comfortable refuge.