This book explores the diagnosis and treatment of Sleep Apnea Syndrome involving various medical figures for whom interactive and multidisciplinary work is essential. This is because sleep apnea is a very wide field that ranges from pediatric apneas, often of organic origin and usually connected to adenotonsillar hypertrophy or craniofacial anomalies, to adult apneas that can have an obstructive origin, especially in the case of overweight and particular conformations of the upper respiratory tract, and/or a central origin due to neurological pathologies. Particular attention has been paid to diagnosis and new technologies that go alongside the classic diagnostic tools, especially in the screening of pathology. The approaches described concern both medical and surgical treatments. Particular attention was paid to the treatment of associated comorbidities and to the physical rehabilitation of apnoic patients. Given the complexity of the pathology and the pictures associated with it, the purpose of this book is to make known the new frontiers both in the diagnostic and therapeutic field that can be used to develop a therapeutic plan tailored to the patient, since not all apnea patients are the same.