I've never had normal sleep. Even in Air Force basic training when we had strict bed and wake times, I couldn't adjust. I just dealt with it.

Am trying to get current sleep issues under control. Meds usually do the job but right now, not on anything that works. I don't sleep until 4am and get up at 7-8am for a few days and then crash and sleep 10-12 hours one day. I hate it.