Dr. Maas makes frequent appearances on such programs as NBC Nightly News, Prime Time Live, the Today show, and Good Morning America.Bibliographic informationTitlePower Sleep: The Revolutionary Program That Prepares Your Mind for Peak PerformanceAuthorDavid J. AxelrodEditionunabridgedPublisherRandom House Publishing Group, 2012ISBN0307819442, 9780307819444Length320 pagesSubjectsHealth & Fitness ???