I do about 6-7 on weekdays, then crash on weekends and sleep 12-13 hours. If I don't get my weekend crash and roll into the next week, I'm practically brain dead by the end of that week.
I have some respiratory problems that make the sleep quality not that great either and 6-7 often more like 3-5 depending.
I'm chronically sleep deprived. It's not healthy.
I'm also a supreme night owl, doing my best work around 6-9pm, and shutting down the brain to sleep is a constant struggle.
Don't do what I do, it's not good, but it's a vicious cycle I'm slowly breaking out of. I used to do 4-5 at night and crash 14-16 hours on weekends. So there's that.
Left to me own devices and no schedule, I'll fall into a cycle where I sleep 8.5-9 hrs, and consistently go to sleep at around 2am and wakeup at 10-10:30am. Sometimes it'll fluctuate and I'll go to sleep at 3-4am, but I'll always wake up about 8.5-9 hrs later, and I'll eventually stabilize on my 2-10 cycle.