Not an insomniac. I require/demand from 5-8hrs per 24hr period (can be broken up sometimes).
Have however had a nearly impossible time (from the age of 13yrs old on) sleeping when it's over-night hours (say 10:00pm-5:00am). It caused me terrible problems in higfh-school. In my adult life I've had mostly nightshift jobs. Only physically hard labor can keep me on track with the dayshift cycle, but that's just no fun lol.