Screening Assessment. Caregivers will be asked questions through an online screening instrument to assess whether their child meets the study's inclusion criteria and does not meet any of the exclusion criteria. To determine if the child has behavioural insomnia, criteria outlined by Richman and modified by Anders and Dahl, which are consistent with the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) insomnia criteria, will be used. To determine if the child may have sleep apnea (an exclusion item), caregivers will complete the Pediatric Sleep Questionnaire (PSQ).