Psychology Today asks: Should you keep studying and delay your bedtime, or shut the books and hit the hay?

Although running on four or five hours of sleep in college let me finish a lot of work and studying, I was sleepy. I found myself nodding off during class, eating more food to keep myself awake, and I became more susceptible to catching colds. I found it harder to study because I hadn’t paid attention well in class. On occasion, I didn’t do as well on tests as I would have liked to. Sometimes I even found myself being short-tempered toward my friends.

Sound familiar?