Well, just to offer some pushback in the thread, I can imagine one reason why. My father has sleep apnea, he is overweight, a heavy smoker and I reckon his dai

Well, just to offer some pushback in the thread, I can imagine one reason why. My father has sleep apnea, he is overweight, a heavy smoker and I reckon his daily intake of coffee could kill a small rodent. We are Spanish and public healthcare has blessed us with a CPAP machine... That he just won't use. He refuses to, complains that he feels too uncomfortable with it. I can't recall the last time he slept 8 hours in one go. And I wonder how common that is. The machine is noisy, does look like pulled out of a teenage horror movie and takes accustoming to. There is heavy friction for its use and that might be a serious problem to consider.