Part 1. Monitoring Positive Pressure Therapy in Sleep-Related Breathing Disorders - Advanced Analysis of Respiratory Flow Curves -- Chapter 1. Sleep -- Chapter 2. Positive airway pressure treatment and monitoring.-Chapter 3. Respiratory flow curve -- Chapter 4. Assessment of the respiratory flow curve -- Chapter 5. Examples of flow curves and other advanced graphics -- Part 2. Monitoring Positive Pressure Therapy in Sleep-Related Breathing Disorders - Advanced Analysis of Respiratory Flow Curves -- Chapter 6. Obstructive sleep apnea developed into central sleep apnea after a stroke -- Chapter 7. Case report: microarousals due to respiratory effort -- Chapter 8. Case report: positional sleep apnea -- Chapter 9. Case report: leaking through the mouth -- Chapter 10. Case report: obstructive sleep apnea and obesity hypoventilation syndrome.