When I was a teenager my Dad would get SO mad because I would sleep through my alarm and it would wake up the whole house. He even got an old fashioned alarm clock, the one with the bells on top and it metal. I still slept through it even when he put it on my head! The main problem was that I didn't get to bed early enough. I would stay up reading until late at night.
I would talk to him about his bedtime routine, instead of his morning routine. That might be the root of the problem. Teenagers want to stay up later because that equals more freedom to them. Use some of the consequences listed earlier and talk to him about what is really going on.