Krav, some of them aren't that comfortable . . .in particular many of the nylon hammocks. That said, I've lain for hours and hours in a tightly woven but soft cotton hammock. I so fell in love with it, I wanted to take one home. Unfortunately, it was very heavy for transport. One thing I noticed about the difference in a hammock's comfort was how tightly it was strung up. When strung with more give, they were considerably more comfortable.