The objective of this proposal is to evaluate a new mobile health (mHealth) system for patients with Obstructive Sleep Apnea syndrome (OSA) that facilitates patient-centered, collaborative management for patients prescribed the first-line treatment, continuous positive airway pressure (CPAP). CPAP adherence rates are disappointingly low. The mHealth system proposed for use in the study is informed by the group's previous interventional efforts, including that of an interactive website intervention for OSA patients prescribed CPAP. Limitations of that intervention included use of an immobile desktop computer for website access and that it was not based on a previously evaluated protocol. The advantages to the proposed mHealth system are the use of a mobile device to allow for increased patient-provider communications and the incorporation of the Sleep Apnea Self-Management Program protocol. The evaluative aspect of this proposal is designed as a randomized, controlled clinical trial-Usual Care (control; UC); Self-Management Care (intervention 1; SM); Self-Management via mHealth (intervention 2; SM-Mobile). The key feature of the SM-Mobile intervention is the use of a mHealth tool that allows for the provision of the Self-Management Program through the utilization of audio/visual conferencing, self-monitoring, and treatment tracking with the patient remotely (i.e., in the non-clinic environment).