Sleep patterns and behaviour in typically developing children and children with autism, Down syndrome, Prader-Willi syndrome and intellectual disability

Abstract

Sleep problems have often been reported in children with intellectual disabilities (ID). How anomalies in 24-h sleep patterns relate to behaviour difficulties in children with different types of ID remains to be elucidated. The purpose of this study was to assess 24-h sleep and behaviour patterns in children with a variety disorders including autism (n = 34), Down syndrome (DS, n = 12), Prader-Willi syndrome (n = 12), and children with intellectual impairments due to unknown etiologies (n = 24). 33 typically developing (TD) children served as a control group. 24-h sleep and behavioural data were accumulated over a 14-day period using diary methodology. Group differences in daytime behaviour ..