Patients will be contacted by their homecare provider 2 days after receiving their CPAP device and will be asked about progress and adherence,as well as about any problems that might have occurred. After 3 months of therapy, patients will return to the hospital to see the PAP coordinator and their doctor. Data on a variety of physiological variables, including PAP adherence, PAP pressure applied, mask leakage, and residual respiratory events, will be downloaded from their CPAP devices. Any problems with treatment may be addressed.