Exclusion Criteria
Significant COPD with Forced Expiratory Volume within one second (FEV1) <50% (European Respiratory Society criteria) in the last four weeks before randomisation
boolean
Oxygen saturation at rest during the day <= 90% at inclusion
boolean
Current use of Positive Airway Pressure (PAP) - therapy
boolean
Life expectancy < 1 year for diseases unrelated to chronic HF
boolean
Cardiac surgery, Percutaneous coronary intervention (PCI), Myocardial Infarction (MI) or unstable angina within 6 months prior to randomisation
boolean
CRT-implantation or ICD-implantation scheduled or within 6 months prior to randomisation
boolean
Transient ischemic attack (TIA) or Stroke within 3 months prior to randomisation
boolean
Primary hemodynamically significant uncorrected valvular heart disease, obstructive or regurgitant, or any valvular disease expected to lead to surgery during the trial
boolean
Acute myocarditis/pericarditis within 6 months prior to randomisation
boolean
Untreated or therapy refractory Restless legs-Syndrome (RLS) according to criteria listed in Appendix IX at the time of study entry
boolean
Pregnancy
boolean