patch air mattress textured patch

...rake to create a smooth patch of rock-free ground to set-up the tent. The air mattress inner film layers don't...give it strength and protection from tears. It will also give it a textured surface so it doesn't slip, a surface similar to that of a camping air mattress. As a final layer ... setting up the tent. The ground sheet doesn't have to be air tight, but does have to endure the cold of space, and...