Statistical analyses will be performed in SPSS version 10 for Windows (SPSS Inc. Chicago, IL, USA). All P-values are two-sided and values < 0.05 are considered statistically significant. To examine and compare demographic and test characteristics at inclusion, chi-sqare test, t-test and Mann-Whitney U-test for independent samples will be used according to distribution, which will be examined with the Kolmogorov-Smirnov Test. The primary outcome is PAP adherence after 3 months (min used per day). To calculate the number of participants needed for an effect size larger than 0,80 as proposed by Cohen (Statistical power analysis for behavioural science. 1988), the investigators based a power calculation on the results of the study by Fox et al. in patients with sleep apnea, comparing telemedicine versus standard CPAP treatment over 3 months. The result of this calculation was 11 patients in one group. Considering patients who will discontinue CPAP treatment, the investigators aim to include 55 patients in the randomisation process. Based on previous data the investigators consider that 168 patients will have to be included in the screening process for sleep apnea.