>>2081600A hammock takes it on warm nights in the mountains where flat ground is scarce and weight is everything. Flat terrain with crazy bugs or truck camping is really the only place for a tent. Given your still going to want a sleeping mat with a hammock in the cold a sleeping mat feels way better in a hammock than on the ground and the gear is going to be lighter.
>>2081628All those options for treeless hanging are sketchy gimmicks that you aren't going to want to carry and use. Also they are all being used in places with trees. If there aren't any trees rock climbing gear is great for hanging a hammock.