Children with neurodevelopmental and mental health disorders (N/MHD), such as autism spectrum, mood disorders, and anxiety, are more likely to engage in excessive screen time, receive insufficient sleep, and to have obesity than neurotypical peers. However, little is known about how parents of these children approach promoting sleep and balanced screen time. We conducted semistructured interviews with 24 parents of children aged 8-15 years with a diagnosis of N/MHD to assess barriers and facilitators to promoting sleep and balanced screen time. Interviews were transcribed, double-coded using constant comparative methods, and summarized into themes using NVivo 11. Many parents described children’s chronic sleep challenges, often compounded by screen use and no clear solutions. When feeling overwhelmed, some parents reluctantly reported co-sleeping or allowing gaming devices in bed. Nearly all participants reported chronic, occasionally severe, conflict when managing children’s screen time, with some parents experiencing opposition and physical aggression. Parents struggled to weigh the benefits of screen use (, behavior management, learning, and social connection) with the costs (, reduced self-care and limited physical activity). To combat barriers, parents described firm routines (, “screens off” time and consistent bedtime on weekdays and weekends), moderating access (, shutting down internet and no device in bedroom), verbal priming, and coping strategies (, music and books). Parents of children with N/MHD face unique challenges in promoting sleep and balanced screen time. Given these behaviors may impact weight status and mental health, future interventions should examine ways to support parents in reducing conflict while promoting healthy habits.