“…The presence of social and emotional problems (DeLeon & Karraker, 2007;Landau et al, 2010;McGeorge et al, 2015;Scher, 2008;Scher & Blumberg, 1999;Spruyt et al, 2008), with exception of autism (Humphreys et al, 2014 ), was also associated with worse sleep-wake behaviour.…”