Hugh Selsick studied Physiology and Medicine in Johannesburg and specialised in Adult and Addictions Psychiatry in London. He established the Insomnia and Behavioural Sleep Medicine Clinic at University College London Hospitals and the Sleep Special Interest Group in the Royal College of Psychiatrists and is past president of the Sleep Medicine Section at the Royal Society of Medicine. He is co-author of Oxford Case Histories in Sleep Medicine (2015) and editor of Sleep Disorders in Psychiatric Patients: A Practical Guide (2018). He has contributed to numerous textbooks on sleep and psychiatry and enjoys teaching professionals and the public about sleep.