So, in high school, I had some issues staying awake in class following sophomore year. I would be paying attention in class, then I'd wake up, realizing I had fallen asleep. I figured I'd grow out of it, but it hasn't gone away. Just so you know, I am not narcoleptic, and I stay awake normally. Just in some classes in college now, I'm missing some material. Not much now, but I hate that I'm falling asleep and could possibly miss some very important information. So, any advice on how to stay awake that doesn't involve caffeine?