Sleep: Everything You Need to Know
One tip which I didn't see: set an alarm for <i>going to bed</i>, not <i>waking up</i>.  You should be able to wake naturally, but artificial lighting changes your perception of when you should go to sleep, shifting you from a naturally 23-hour circadian rhythm to a 25-hour one.<p>So just set an alarm for 11pm, and when you hear it, immediately stop what you're doing, save any open documents, turn the TV or computer off. The next 30 minutes are for brushing teeth, settling into bed, and preparing for the following morning only. By then you should be settling into a good night's sleep.