The Turing Alarm Clock

This is incredibly nerdy and brilliant at the same time:

This is an old invention of mine. I had trouble waking up for work, and traditional alarm clocks didn’t seem to help. I learned to hit the snooze or off buttons in my sleep. The problem was that alarms are too easy to turn off, and so I set forth to create an alarm clock that challenges me to prove that I am awake.

http://www.cheaphack.net/2008/01/turing-alarm-clock.html