Sleep-related movement disorders in childhood and adolescence (R. Silvestri, S.
Nevsimalova): The chapter involves definition of pediatric restless legs syndrome, primary and secondary nocturnal leg cramps, evaluation and prognosis of sleep-related rhythmic movements, bruxism and sleep-related rhythmic masticatory muscle activity, benign sleep myoclonus in infancy and propriospinal myoclonus at sleep onset.