An average night sleep for me is going to bed at 12-1am and waking up at 4:30 (Not because I have to, but because I just do)
I'll often just not be able to get any sleep and go a few days with a total of 0-30 minutes of sleep.
I have a hard time with sleep, due to various factors, but luckily I don't need a huge amount (Though I do tend to sleep for 6-24 hours whenever I go for a 5 minute nap...)