ABSTRACT
Epidemiological surveys estimate that insomnia afflicts approximately one third of the U.S. population, with 10 to 15% of adults reporting disturbed sleep as a serious and persistent problem (e.g., Ancoli-Israel & Roth, 1999). Far from being benign, persistent or chronic insomnia is associated with a number of serious individual and societal consequences. Insomnia has been linked consistently to increased medical and psychiatric morbidity and is associated with decreased quality of life, impaired job performance, increased absenteeism, and life-threatening accidents (e.g., Ford & Kamerow, 1989) (Kupperman, Lubeck, & Mazonson, 1995).
