<human>: Can you provide a brief rundown of the text in within 3 sentences?

So basically a cursory kind of statement is that my exam period starts next week so I've been having anxiety attacks and been really stressed over that and not sleeping.

Today I slept through my alarm. (I woke up to it still going off) As a result of this I missed the class time to present an assignment. I asked my friend if he had said anything. They responded saying that the prof would forego my presentation marks and just mark on the information found in the presentation.

I'm honestly fairly happy with this outcome but I'm not sure what I should message my prof saying? Obviously I should apologise but what would I say?
<bot>: Slept through my alarm and missed class in which I was meant to present an assignment. How should I apologise to my professor?