Ravi Gupta, MD, PhD MAMS, Certified Sleep Physician (World Sleep Federation), is Associate Professor in the Department of Psychiatry & Sleep Clinic, Himalayan Institute of Medical Sciences, Dehradun, INDIA. In 2010, he received a Mini-Fellowship from the American Academy of Sleep Medicine to improve his skills in this area, and thereafter, he refined his knowledge and skills under the able guidance of Dr. Jim Walker and Dr. Robert Farney at LDS Hospital, Salt Lake City, Utah. He has contributed chapters to various high profile academic volumes. He is the author of both Indian and international books, including the book Psychiatry for Beginners , and has more than 100 published articles in various peer-reviewed journals to his credit. He has received numerous awards and fellowships, including the Indian Young Psychiatrist Award from the Indian Psychiatric Society (2008), fellowships from the World Psychiatric Association (2008) and from the Japanese Society of Psychiatry and Neurology (2009), and membership of the Indian Academy of Medical Sciences, New Delhi (2015), to name a few. He is engaged in imparting knowledge of sleep medicine to physicians from various streams through lectures, workshops, and training programs in his present institute.

S.R. Pandi-Perumal, MSc, is the President and Chief Executive Officer of Somnogen Canada Inc., a Canadian corporation. He is a well-recognized sleep researcher, both nationally and internationally, and has authored many publications. His general area of research interest includes sleep and biological rhythms. He is a well-known editor in the field of sleep medicine and has edited over 20 volumes dealing with various sleep-related topics. He received an honorable mention in the New York Times in 2004. The India International Friendship Society awarded him the prestigious Bharat Gaurav award on January 12, 2013. The Bharat Gaurav Award is usually recognition of a person who has made achievements in a particular field, which in turn will put a positive impact on the society at large. His online biography can be viewed at http://pandi-perumal.blogspot.com

Ahmed S. BaHammam, MD, FRCP (Lon), FRCP (Edin), ABIM, EDIC, FACP, FCCP, is a tenured Professor of Medicine at King Saud University (KSU). Recognized as a leading expert in the field of sleep medicine, both nationally and internationally, Prof. BaHammam established the first academic sleep disorders center in Saudi Arabia and the first Sleep Medicine Fellowship program and subsequently chaired the committee that established the Saudi regulation for accreditation of sleep medicine specialists and sleep technologists. As a founding member of the Saudi Thoracic Society and the Saudi Sleep Medicine community, Prof. BaHammam has organized over 20 workshops on polysomnography. His advanced polysomnography courses have been conducted in several countries in the Middle East. For his contribution to sleep medicine, he was awarded the Lifetime Achievement Award (2016) by King Saud University. He has published more than 200 scientific articles. He is a member of the editorial boards of several international medical journals. Further information about his work can be found at http://faculty.ksu.edu.sa/ahmedbahammam/default.aspx.