Parent-Mediated Telehealth Intervention for Insomnia in Young Autistic Children

Inclusion Criteria: * Age \>3 to 7 years 11 months * Clinical diagnosis of ASD supported by the Autism Diagnostic Interview Revised (ADI-R) * Score of \>30 on the Parent-Rated Insomnia Scale - ASD (PAIRS) and the Clinical Global Impression Severity (CGI-S) score of Moderate or greater (\>4 score) * Medication and supplement free or on stable medication or supplements (no changes in the past 6 weeks and no planned changes for 10 weeks of the randomized trial) * Parental proficiency in spoken and written English language. Study materials and many of the study measures are only available in English Exclusion Criteria: * Children with a history of serious medical condition or known medical cause insomnia (e.g., nocturnal seizures, unresolved gastrointestinal problems such as reflux or constipation) * Children with a psychiatric disorder or serious behavioral problem requiring a different treatment * Children with known sleep apnea, restless leg syndrome, or periodic limb movements during sleep, or a circadian-based sleep disorder (e.g., delayed or advanced sleep phase syndrome) * Children of non-English language speaking caregivers will be excluded because study intervention materials and many of the study measures are only available in English