I think I have mentioned before that I am an insomniac. (I have a medical diagnosis as such from a neurologist.) I spent the last year going through sleep therapy to work to alter my behaviors that affect sleep to improve the quality and quantity of sleep. My neurologist suggested the behavior change therapy over medication because my body will eventually adapt to the medication and become ineffective.
Alcohol is great for putting you to sleep, but not keeping you asleep through the night.