ABSTRACT

Whereas most people have trouble sleeping from time to time, some have persistent difficulty initiating or maintaining sleep and/or do not wake feeling refreshed. Individuals who experience this difficulty and suffer a concomitant decline in their social and occupational functioning or quality of life are given a diagnosis of insomnia.1 Insomnia is estimated to occur in up to 10-20% of the general population and 50% of those who are seen in primary care clinics.2-5 Of all the sleep disorders, insomnia is the most common.2