Sleep disorders in children and adolescents

Abstract
Introduction A recent telephone survey of 1125 adolescents aged 15-18 from France, Great Britain, Germany, and Italy found that about 20% were sleepy in the daytime, 25% had insomnia symptoms, and 4% met established criteria for an insomnia disorder.1 2 Sleep-wake disorders are common and have an important impact on the quality of life of children, but if they are promptly recognised and treated the outcome is favourable. Alertness is the inherent ability of the brain to sustain attention and wakefulness with little or no external stimulation;3 sleepiness results from impaired daytime alertness.