> Everybody wants better sleep
Bro, as someone who had brutal insomnia for a couple of years and now sleeps "normally" for whatever that means, I can tell you that I don't think about my sleep quality at all. I'm happy to be sleeping.
If you too sleep "ok" for whatever that means, maybe stop worrying about optimizing it and go do something else less insane.
Waking up tired and with the brain full of fog is nearly as fun as not sleeping and ending up tired, with the brain full of fog. Truth be told, most cases of "poor sleep quality" are not as brutal though.
The charitable reading of "better sleep" is "sleep habits that allow for a healthy amount of sleep". A lot of people have habits that give them insufficient sleep.