The use of the BiPAP autoSV4 device in participants with Complex Sleep Apnea Syndrome will treat those participants no worse than when compared to its predecessor device, the BiPAP autoSV Advanced™, with respect to:~• Apnea-Hypopnea Index (AHI)
Comparing two BiPAP autoSV devices in participants with complex sleep apnea and determining if the new device will treat those participants no worse than when compared to its predecessor device.