Sleep quality questionnaire used as a screening tool for sleep disorders: use of the Sleep Disturbance Scale for Children. Sleep Disturbance Scale for Children (SDSC) is a screening tool for sleep disorders in children and adolescents with good psychometric properties. It is one of the most used sleep questionnaires in the clinic but also in clinical research. Since its creation, the SDSC has been translated into several languages and recently validated in French. The ranking is obtained from a 26-item questionnaire completed by the parents. This scale distinguishes 6 major groups of sleep disorders: disorders of the installation or maintenance of sleep, breathing disorders, waking disorders, sleep-wake transition disorders, excessive daytime sleepiness and hypersudation of sleep.