HI!
I’m not an expert all, but I find that there are things that are completely doable with a low ceiling height (mine is 8 feet) and other things that become more difficult or not doable unless more height is available. For example, I find the hip key hinge more difficult at home (8 ft) than when at a studio with 12 ft ceilings. I think your height might also matter – I’m just barely 5 ft tall. I think, too, that hanging the hammock from a single point gives the hammock a very different feel from and hanging from two points, particularly with a low ceiling. I don’t know what the “official” recommendations are, so I thought I ‘d just share my personal experience….