Sleep disordered breathing (SDB), which includes central and obstructive sleep apnea, is by far the most common respiratory disorder in the developed world. Pulmonary and critical care physicians receive little instruction or teaching about SDB, even though emerging evidence suggests that recognition and treatment can improve outcomes for their patients. Furthermore, new data suggest a role for non-invasive ventilation in the management of patients with chronic respiratory disease.This session is designed to provide:1) an overview of Sleep Disordered Breathing epidemiology and pathogenesis; 2) evidence of the importance of "Overlap" Syndromes between SDB and chronic respiratory disorders such as COPD, asthma, pulmonary fibrosis. This will include new data suggesting a mortality benefit for the use of NIV in COPD.3) review evidence for importance of recognizing SDB in the hospital, and emerging data that early diagnosis and treatment can improve outcomes.