Sleep-disordered breathing (SDB) is recognized as a widespread, under-diagnosed condition associated with many detrimental health problems. The condition places a significant burden on the individual and the healthcare system alike, with untreated SDB patients utilizing national health resources at twice the usual rate. The most common form of SDB is obstructive sleep apnea, characterized by frequent transient reductions of oxygen saturation, cessations of ventilatory airflow, and collapse or obstruction of the upper airway. Other forms of SDB include hypopnea, characterized by a reduction of ventilatory airflow; central apnea, with a cessation of ventilatory effort and airflow; and mixed apnea, a combination of central and obstructive apnea.