I typically get 6 hours on weekdays, which is enough to function ok and I usually need about a half an hour to sleep. I really need 8 hours to function at my best though, which I get during the weekend.

However, I am a night owl and I have an early morning job so I have become dependent on melatonin to sleep and coffee to wake up. I am also a light sleeper, so noises can easily wake me up.