Shantha Rajaratnam was awarded his PhD degree from Monash University in 1998, and Bachelor of Laws degree in 2000. He undertook postdoctoral training at the Centre for Chronobiology at the University of Surrey, UK from 2000-2002, where he investigated human sleep-wake regulation, in particular the role of melatonin. In 2004 he took up a visiting academic position at Harvard Medical School and Brigham and Women’s Hospital, Boston, USA, investigating the impact of melatonin agonists and light on sleep and circadian rhythms, and fatigue management programs in occupational settings. Since 2006 he has served as Chair of the Monash Sleep Network. He is a Lecturer in Medicine in the Division of Sleep Medicine at Harvard Medical School and an Associate Neuroscientist in the Division of Sleep Medicine at Brigham and Women’s Hospital in Boston. He is a Psychologist, Chartered Psychologist in the UK and Associate Fellow of the British Psychological Society.