Background: Sleep disturbance is common and can have harmful psychological and physical effects. While sleep problems in children with Down syndrome (DS) have received a reasonable amount of attention, very little has been written about this topic in adults with DS.; Method: The present study consisted of an online survey completed by 100 family carers of adults with DS.; Results: High rates of sleep problems of different types were reported in the adults with DS comparable to those found in children with DS in previous research.
