Randomization: Patients will be randomized into two groups differing in CPAP treatment management (standard care vs. telemedicine). Patients of both groups will be visited in Sleep Unit at 3st and 6th month after starting CPAP treatment. The CPAP machine of both groups will be provided with a modem sending daily information about CPAP treatment compliance and adherence to MyOSA web site (this kind of information will only be actively used during the follow-up in the telemedicine group).