British scientist, professor of neurosciences and psychology at the University of California, Berkeley. He is director of the Center for Human Sleep Science and a former professor of psychology at Harvard University. He has received numerous funding awards from the National Science Foundation and the US National Institutes of Health, and is a Fellow of the National Academy of Sciences. He has more than a hundred scientific studies published. He participated in several television and radio programs, including: "60 Minutes", "National Geographic", "National Public Radio" and "BBC".