Daniel J. Buysse
В роли: Self - psychiatrist, University of Pittsburgh

Eve Van Cauter
В роли: Self - sleep professional, professor of medicine, University of Chicago

David F. Dinges
В роли: Self - sleep researcher and teacher, University of Pennsylvania

Elizabeth Fuller
В роли: Self - sleep test subject

Shon Starks
В роли: Self - sleep test subject

Charles Czeisler
В роли: Self - physician and sleep researcher, Harvard Medical School

Ben S. Howard
В роли: Self

Rachel Howard Kunzler
В роли: Self - Ben S. Howard's daughter

David Gozal
В роли: Self - expert in the treatment of pediatric sleep disorders, University of Chicago

Matthew P. Walker
В роли: Self - professor of neuroscience and psychology, University of California

Francis Collins
В роли: Self - physician-geneticist, director of the National Institutes of Health (как Dr. Francis Collins)

Eryn Cooper
В роли: Self

Judith Owens
В роли: Self - authority in the field of children and sleep, Boston Children's Hospital

Jeffrey Iliff
В роли: Self - neuroscientist, Oregon Health and Science University

Don Osterberg
В роли: Self - vice president of safety, Schneider National

Carl Roseberry
В роли: Self - truck driver

Wendy Sullivan
В роли: Self - Precision Pulmonary Diagnostics

David P. White
В роли: Self - professor of sleep medicine, Harvard Medical School

David Mulder
В роли: Self - truck driver

Mark R. Rosekind
В роли: Self - National Highway Traffic Safety Administration

Robert Stickgold
В роли: Self - sleep researcher, Harvard Medical School

Wendy M. Troxel
В роли: Self - behavioral and social scientist, RAND Corporation

Sumner Bemis
В роли: Self

Lisa Bemis
В роли: Self - Sumner Bemis' wife

Patricia Horoho
В роли: Self - Lieutenant General, U.S. Army

Carol Kraus
В роли: Self

Thomas C. Neylan
В роли: Self - professor of psychiatry, University of California

Angel Rodriguez
В роли: Self

Darren Whitfield
В роли: Interviewee / Self (в титрах отсутствует)