Through host Adrian Pang we embark on an investigative journey through slumber land. In this premiering episode, Adrian undergoes a sleep study or polysomnography, and a functional magnetic resonance brain-imaging scan. Accompanying Adrian for his sleep experiments are two acclaimed sleep doctors. They take us through intriguing fundamentals about sleep. What is normal sleep? How are we inviting the silent killer in when we do not have enough sleep? And exactly how much sleep is enough?