As a teenager I could sleep +10 hours without the all nighter. I think most of my college senior year I averaged 3 hours a night for 6 nights and then crashed with about 10 on a weekend night. I’m not sure if that was harder than working 3rd shift and staying up all of Friday so I could sleep that night and spend time with my wife on Saturday and Sunday.
Back a little more than 20 years ago I heard that “serious” students had moved on to your prescription ADHD uppers. Now as a mid 40’s adult I try and not indulge in caffeine too much, after a week of soda or coffee I start to feel like garbage.