Half of the people complaining of insomnia consider their problem serious enough to seek professional help.
Insomnia is perhaps the second most prevalent health complaint after pain.
It is twice as frequent in women as in men and its incidence increases with age. Insomnia is not a trivial complaint. Chronic sleep disturbances may have a detrimental impact on daytime functioning. It can cause considerable subjective distress and impair the quality of life. Clinical Characteristics Problems falling asleep, trouble waking up in the middle of the night, and early morning awakening are the most common insomnia complaints.