This study evaluated the effectiveness of Bedtime Fading with Response Cost (BFRC) in decreasing sleep disturbances in children with Autism Spectrum Disorder (ASD) using parents as change agents by implementing treatment in the home environment. A non-concurrent multiple baseline design across three participants was used. Results indicate that BFRC was effective in eliminating unwanted co-sleeping, frequent night awakenings, and dependent sleep onset. Secondary improvements include reducing sleep onset latency, bedtime resistance, and disruptive sleep-related behaviors. Follow-up data demonstrate gains were maintained. Parents reported high satisfaction with BFRC and sleep outcomes for their children. This study extends both the practice and science of parent-implemented behavioral interventions as treatment options for children with ASD and co-occurring sleep disturbances.