How to Wake Up Without an Alarm Clock

"Fingernails screeching down a blackboard, the shrill tones of the Emergency Alert System, Carrot Top: few things are as obnoxious as an alarm clock. Human beings have survived for most of our history without these confounded noisemakers—-why would you need one now? The answer, of course, is that everyone else has one, and it would look bad if you were the only one wandering into the office two hours late. But like momma said, just because everyone else is doing it doesn’t mean you should. Waking up naturally is much easier on you, as your body will slowly adjust from deep sleep to a calm awakening. Here's how to separate yourself from the alarm clock without quitting your job or dropping out of school."