RecruitingBehavioural interventionThe Power Down Pilot Study: A Novel Bedtime Manipulation ProtocolThe goal of this pilot intervention study is to examine the feasibility and acceptability of a novel bedtime manipulation protocol called "The Power Down" for autistic youth, ages 6-10. The main questions it aims to answer are: 1. Is the Power Down feasible for caregivers to do each night? 2. Do the families find the Power Down an acceptable intervention to address their child's difficulties settling down to fall asleep?