Cognitive Behavioral Treatment for Improving Sleep in Overweight and Obese Youth

Inclusion Criteria: * 6-12 years of age * Prepubescent * Have a body mass index ≥85th percentile for age and gender norms as published by the CDC, and * Accompanied by a parent or legal guardian that lives in the same home as the child. The parent must be able to read and understand English at the 5th grade level. Exclusion Criteria: * Sleep Apnea: previous diagnosis or an apnea/hypopnea index (AHI) \>10 according to PSG. * Periodic Limb Movement Disorder (PLMD): previous diagnosis or myoclonus arousals per hour \>5 according to PSG. * Circadian Rhythm Sleep Disorder, Delayed Sleep Phase Type * Medication exclusions: Prescribed or OTC sleep medication within the last 1 month (unless stabilized on medication for 6+ months); Currently taking psychostimulants; antipsychotic agents; monoamine oxidase inhibitors; systemic corticosteroids; antibiotics for HIV or TB; chemotherapeutic drugs; or use of prescription weight-loss drugs within six months. * Conditions or behaviors likely to affect trial conduct: unwilling to accept random assignment; participation in another randomized research project; parent unable to read and understand English at the 5th grade level; presence of bipolar or seizure disorder (potential sleep restriction); restless leg syndrome, major psychiatric disorder other than anxiety or depression; child with major cognitive or developmental delay; unable to complete forms, implement treatment procedures, etc. due to cognitive impairment; psychotropic or other medications (beta-blockers) known to alter sleep; participation in other CBT treatment or nonpharmacological sleep treatment; or any other condition/situation which would adversely affect trial participation.