Sleep constitutes approximately one-third of the average lifetime, and good sleep quality is important for both physical and mental health, especially for patients with a chronic disease. A growing range of literature links sleep disorders (in all its forms) to the development and progression of cardiovascular and non-cardiovascular diseases [1–3]. In particular, sleep disorders are associated with several respiratory disorders including chronic obstructive pulmonary disease (COPD). Indeed, both COPD and obstructive sleep apnea (OSA) are highly prevalent, with recent population-based studies suggesting that about 500 million people suffer worldwide from these diseases [4,5].
