My colleagues wouldn't exactly describe me as an "early riser". Some spring out of bed, fully energized, at the first ring of their alarm - my boss, for example, I've caught bragging about his ability to be up at 5:30.
As for myself, I appreciate the value of redundancy. Here's my setup; alas, I still don't wake up on schedule 100% of the time. Maybe we need a fourth stimulus?
07:15 Halogen Floodlight
07:30 Alarm 1
07:35 Alarm 2
PS: I'm not kidding.