They found that talking to a therapist offered better treatment than medications. Just the use of behavior changes will allow for a better nights sleep.
http://www.boston.com/news/globe/health_science/articles/2004/09/28/sleep_study_touts_therapy_over_pills/
http://www.boston.com/news/globe/health_science/articles/2004/09/28/sleep_study_touts_therapy_over_pills/