This study will develop and test a youth cognitive behavioral insomnia intervention to be employed as an adjunct to depression-focused cognitive behavioral treatments. The primary goal of the study is to improve the treatment and prevention of youth depression beyond that achieved with depression-focused pharmacotherapy and psychotherapies. The investigators' ultimate aim in developing this intervention is to enable a series of future outcome trials focused on improving unipolar depression outcomes in youth with comorbid insomnia, by addressing sleep dysfunction. The study will be recruiting from Kaiser Health Plan members in the Portland,Oregon metropolitan area and participants from the Bay Area region of California.