I will be blunt...no I don't think your professor will care. I'm sure they hear excuses all the time. If anything tell him you take responsibility for it and ask is it possible to still attend/pass the class if things changed.

However, I would worry about your future more than this class. How will you be able to work a job that starts in the morning? Or will you look for jobs that start later in the day? I understand fatigue can effect your life. I get that. However, you have to start working on the sleeping through your alarm. Go to bed earlier if that's it. Find another louder alarm. Set 10 alarms. Get on a better sleep schedule and do things that help you get a more restful sleep during the night.