Totally depends on the day and season for me.
Especially in the summer, I go out a lot at night, so we may be at the bar until last call and then come home and drink some more/play board games/watch a movie. 2 or 3 am is common to finally fall asleep on these days. Wake up between 7 and 9 usually for work/dog feeding, 5 on gym days. So, sometimes only 4 or 5 hours probably.
In the winter especially, I'm more of a hermit. It gets dark and I'm inside, frequently in bed by 10. Get up at 7-9 for work or 5 on a gym day and I get at least 7 hours of sleep. Sometimes 11.
It's all pretty fine for me. I can function well on very little sleep. Usually it doesn't matter how much I get, but when I go to sleep/wake up. If I go to bed late (3) and get up late (3), I'm going to feel like crap, even if I just slept for 12 hours.
I'd feel the same way if I went to bed at 11 and slept until 11. If I went to bed at 3 and got up at 8, I'd be totally fine. If I went to bed at 12 and got up at 5, I'd be grouchy and feel like crap.
I'm odd.