Z is for Zzzzz

Sleeping in class?

I had a conversation with a teacher friend yesterday.  He taught high school.  He had a student that slept every day in class.  He did everything he could to connect with this student.  Nothing worked.  He then had a conversation with the student.  Basically, it boiled down to if you sleep in this class, there is no way that you can get a passing grade.  He then asked if that was an acceptable outcome.  The student replied yes. 

My teacher friend said he was okay with this.  Sleeping isn't disruptive and the student made an informed and conscious decision to not learn. 

What's a teacher supposed to do?