"Are those 6 hours quality sleep?" Good question! My AHI's over the past few weeks have generally been <3.0 with leaks mostly under control. I have a Swift LT coming in the mail, so hopefully that will help.
"Do you feel rested and not like your sleep has been interrupted?" I do feel rested most mornings, but I also know that my sleep is interrupted (1-3 times/night that I remember).
"Do you wake up to an alarm clock or other outside stimulus or naturally?" I have an alarm during the week, but generally I wake naturally before it goes off.
"Do you sometimes sleep longer and feel as if you're catching up?" No, wish I could.
"Do you wake due to physical causes, such as..." Not as far as I know.