Here's my take...I don't sleep good, ANYWHERE.
I have had issues with sleeping for years. I typically wake up 5-6 time/night, regardless of whether or not I'm at home in my bed or camping out in my hammy.
I love camping out. I love getting out into the woods, and away from people. In my case, I struggled with sleeping in a tent/on the ground, as it massively aggravated my back.
That's where the hammock makes the difference for me. I don't hurt when I wake up and get outta bed in the morning when I camp now. I can get straight up, dressed, and ready to move with no pain.