Overview: The current study, which is a collaboration between Indiana University at Bloomington (PI: Bates) and Indiana University School of Medicine (PI: Honaker), seeks to evaluate the impact of adding a sleep component to a parenting intervention that has been shown to effectively treat disruptive behavior in children. A mealtime intervention will serve as an active control for the sleep treatment component, as the mealtime intervention targets changes in a family routine but is unlikely to significantly impact sleep. Participants who receive the sleep component are expected to show significant improvements in sleep compared to the mealtime group. The investigators further hypothesize that children receiving the sleep intervention will have reduced presleep arousal levels compared to baseline, and will show greater reduction in presleep arousal levels than the mealtime/control group. Finally, because of the documented links between poor sleep and externalizing behavior problems and theoretical arguments about sleep mechanisms supporting emotional and behavioral self-regulation, the investigators hypothesize that the participants who receive the sleep component will show greater reductions in disruptive behavior compared to the mealtime/control group.