I live in the desert, and slept outside, for 9 months, before.
I found that the simplest, $5 hammock, of nylon cordage, could fit in pocket and hold my heavy bodyweight, but eventually got sun damaged.
I have since had the chance to use ones held open with a wooden spreader board, on pipe contraptions, with high weight ratings, because they were meant for two people. But, it seems that, the more complicated it is, the more worries, the more it is prone to malfunctions.
I like this, because I get really hot, with may back to a chair or a mattress. The hammock made of netting allows air to move around me.