insomnia?
sam_in_nyc: Find out what's causing it... there's something wrong.  Usually it is stress or anxiety.  Is something worrying you?The easiest way to solve it:  exercise and/or eat more.  This reduces stress and anxiety.  It's easier said than done... I find insomnia (and most things in life) to be a feedback loop.  Less sleep means I'm more exhausted and not hungry.  More quality sleep gives me more energy to exercise and I eat right.  So you've gotta do something that changes in which direction you're regressing.It should be noted there's a difference between insomnia and sleep phase disorders.  One is actually whether or not you sleep soundly for enough hours a night, and the other is at which hours you tend to sleep.But take my advice with a grain of salt.. it's 6:15 here and I'm still awake :)