I'm everything in this photo. I can wake up if I need to at 600, but I get paranoid that I won't so I set my alarm for 530. Then I get paranoid that I'll sleep through that alarm so I set one for 545, and finally another for 600. I don't trust snooze because I've accidentally turned off the alarm too many times while trying to hit snooze.
But most of the time I will wake up 5 minutes before each of the three alarms.