Pediatric Insomnia may co-occur with primary sleep disorders including obstructive sleep apnea (OSA) and/or periodic limb movement disorder (PLMD). Limited research examining comorbidity of pediatric insomnia with other primary sleep disorders has focused on quantifying prevalence of insomnia symptoms in children referred for sleep disordered breathing evaluation and/or with polysomnography (PSG) confirmed OSA. Because PSG has limited utility for evaluation of primary insomnia there are few pediatric studies repor…