Michael V. Vitiello, Ph.D. is Professor Emeritus of Psychiatry & Behavioral Sciences, University of Washington, Seattle. He is an internationally recognized expert in sleep, circadian rhythms, and sleep disorders in aging. His National Institutes of Health funded research examined the causes, consequences and treatments of disturbed sleep, circadian rhythms, and cognition in older adults. His most recent research focused on improving the sleep of osteoarthritic older adults to reduce osteoarthritis-related symptoms such as pain, fatigue and depression, and healthcare utilization and related costs. He is the author of more than 640 scientific articles, reviews, chapters, editorials and abstracts and his work has been cited over 44,000 times. He is the founding Editor-in-Chief of Sleep Medicine Reviews, a fellow of the American Academy of Sleep Medicine and the Gerontological Society of America, and the recipient of numerous awards including the National Sleep Foundation’s Lifetime Achievement Award and the Society of Behavioral Sleep Medicine’s Distinguished Service Award. He chairs the Public Health and Research Council of the National Sleep Foundation, and is a past: President of the Sleep Research Society and of the Sleep Research Society Foundation; Chair of the Sleep Disorders Research Advisory Board, National Institutes of Health; Scientific Program Chair of the Associated Professional Sleep Societies; board member of the Sleep Research Society, the Society of Behavioral Sleep Medicine, and the National Sleep Foundation; and editorial board member of numerous high-impact scientific journals.