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[Disorders in sleep organization in pediatric diseases].

Interactions between sleep and general pathology in pediatrics are numerous and little known. Sleep organization evolves with age and stages of development. The most important physiological sleep changes occur during the first year of life. The main symptom of sleep disorders is excessive daytime sleepiness associated with dyssomnia, behavioral and learning disorders. Sleep disorders in childhood are often difficult to evidence, sleep investigations being still heavy and expensive.