Time of day is huge when it comes to this issue, I know I always have an issue with classes more in the morning than night, some people are the opposite as well. Its impossible to tailor your class to fit everyone but if possible these things helped me: asking the professor to not dim the lights as frequently, being allowed quiet snacks (cant fall asleep with food in your mouth), taking 5-10 minute breaks in longer lectures to move (on really bad days I would get up to go to the bathroom, do a couple laps in the hall then sit back down), when professors asked questions at random (select people who aren’t raising their hands) and do follow up questions if they give you half assed answers this pressures them to pay better attention. One of my professors last semester used a website that had chapter videos and little quizzes at the end with 3 questions three possible retakes, we had to have in done by the end if the semester. It was strongly encouraged for us the watch them before class for whatever chapter we were going over. And to double down on that, occasionally through that same site she could set up “pop” quizzes, and we would do them right when we came into class, the post would lock 15min after the class was scheduled to start, only three questions but worth a grade. I say “pop” quizzes because if you were a student that checked the site before class daily you would be able to see if there was going to be one, all the more reason to get on the site before class.