REMStar Auto With C-Flex - In-Laboratory Performance v. Conventionally Titrated CPAP Therapy: Performances and Preferences

This study will evaluate the use of REMStar Auto with C-Flex (RSA C-Flex) therapy in subjects with previously diagnosed obstructive sleep apnea / hypopnea syndrome, during in-laboratory studies. The study will determine the ability of RSA C-Flex therapy to effectively treat the sleep apnea events. Mask leak and key sleep parameters will be monitored, and are expected to be improved with C-Flex vs. CPAP therapy. Satisfaction from both patient and technician will also be monitored.