Selected bibliography American Academy of Pediatrics. “School Start Times for Adolescents.” Carskadon, Mary A. Research on adolescent sleep and circadian timing. Foster, Russell. Work on circadian neuroscience and sleep. Harvard Medical School, Division of Sleep Medicine. Resources on sleep, learning, and adolescent health. Panda, Satchin. Research on circadian rhythms and biological timing. Walker, Matthew. Why We Sleep.