Sleep medicine is a growing area of medicine. It originated in respiratory medicine as breathing disorders were seen as the main challenges for sleep deprived individuals. However as more has been learnt so sleep medicine has encroached into neurology and psychiatry as both a primary and secondary concern for diagnosis and management. There are many textbooks available but little of practical guide is aimed at neurologists. The book is part of the Neurology in Practice series, the aim of which is to provide a clinical 'in the office' or 'at the bedside' guide to effective patient care for neurologists in practice and in training. The tone will be practical, not academic. The working assumption is that readers want to know what (and what not) might or should be done, without over emphasis on the why. That said, it is important to review the crucial basic science necessary for effective diagnosis and management, and to provide reminders in the context of the practical chapters. The books will not be heavily referenced, in line with a more practical approach. This allows for smoother reading (and also relieves the burden of comprehensive citing from authors). Key evidence (clinical trials, Cochrane or other meta analyses) should be summarized in 'Evidence at a Glance' boxes and key references such as reviews, major papers can be provided in the 'selected bibliography' at the end of each chapter. Practical guidance will be provided through: Use of algorithms and guidelines where they are appropriate'Tips and Tricks' boxes - hints on improving outcomes perhaps via practical technique, patient questioning etc'Caution' warning boxes - hints on avoiding problems, perhaps via contraindications'Science Revisited' - quick reminder of the basic science principles necessary for understanding