I took Valerian Root on nights when I was having a hard time sleeping. It helped me alot. You can find it at a health food store or a vitamin store.
"Valerian (Nervous) has been used as a sleep aid for over 1,000 years. Its ability to help relax the central nervous system, promote feelings of calm, decrease levels of anxiety and stress, and enhance sleep are known to millions the world over.
Unlike some prescription sleep aids, valerian is not known to cause morning grogginess and is non-addictive."