Dr. Matt Walker is a renowned sleep scientist and professor of Neuroscience and Psychology at the University of California, Berkeley. He is also the founder and director of the Center for Human Sleep Science at UC Berkeley, where he conducts research on the effects of sleep on human health, well-being, and performance. Dr. Walker has authored numerous scientific articles and book chapters on sleep, and is the author of the bestselling book "Why We Sleep: Unlocking the Power of Sleep and Dreams." He is a frequent speaker at scientific conferences, TED Talks, and media outlets, and is widely recognized as a leading authority in the field of sleep science.