As a former college student I can tell you that are simply days when a little shut eye is more important than the ridiculous subject that your professor is rambling on and on about and the last thing you want is to get caught. So here are a couple of ways to get away with it.

First you have the pulled down hat trick. Simply lower the brim of your hat untill it is close to your eyes and position your head in a way that looks like your conscience and rock out a little nap.

Another way is the old hide behind your book trick. (This was impossible for me due to the fact that I am 6 foot 8 inches and 300 lbs.) Simply open your book and hide out and you can catch a few zzzzzz's. Dont forget that it is college and you professor does not care if you sleep the whole semester or not so in a time of crisis feel free to rock the full blown, head back, possibly snoring, crash you may need to get thru the day.

Whatever you do, don't get caught. If your in the back row, by all means go ahead and do the damn thing but if your anywhere near the professor, be sneaky because they will embarrass you. Like this poor guy here: