Sleep-wake function in children with neurodevelopmental and psychiatric disorders.

Sleep disturbance is commonly described in children with developmental problems of a primarily physical or psychiatric nature. Its persistence is likely to adversely affect cognition, mood, behavior, and family functioning. Therefore, accurate diagnosis of the underlying sleep disorder, with prompt and effective treatment, can be considered essential for overall care. Reports of sleep disturbance in various neurodevelopmental and psychiatric disorders of childhood are outlined. The origins of the disturbance in each condition may lie in the disorder itself, the child's circumstances, or reflect comorbidity. Each contributory factor has implications for treatment strategies and outcome. Much remains to be discovered about childhood sleep disorders. However, sufficient information is already known to significantly improve their recognition and management if professional education in such matters improves.