“…Although the nature of sleep problems in individuals with IDD has been a focus of research for several decades, less research has been focused on treatment options and often assessed individuals with IDD as a homogenous group with little distinction for developmental changes with age. Several literature reviews in the last decade have drawn attention to sleep problems in specific genetic syndromes or disorders, specific age groups, or targeting issues with assessment and treatment (Churchill, Kieckhefer, Landis, & Ward, 2012; Didden & Sigafoos, 2001; Doran, Harvey, Horner, & Scotti, 2006; Richdale & Baker, 2014; Tietze et al, 2012; van de Wouw, Evenhuis, & Echteld, 2012). Given the prevalence of sleep problems in individuals with IDD, there is growing need to understand the types of sleep problems experienced by this heterogeneous group of individuals with IDD, how measurement of sleep problems impacts findings, and implications for appropriate treatment of sleep problems among individuals with IDD across the lifespan.…”