Complex sentence: Hammock camping is a form of sleep camping in which the camper sleeps in a suspended hammock rather than a conventional tent upon the ground, although some camping hammocks can be set up on the ground when supports are unavailable.
Split into simpler sentences: Hammock camping is a form of sleep camping in which the camper sleeps in a suspended hammock rather than a conventional tent on the ground. Some camping hammocks can be set up on the ground when supports are unavailable.