FWIW, he didn't specify the type of mask. Something like a non-invasive ventilator is far closer to "a mask that would breathe for me while I slept" than CPAP.

FWIW, he didn't specify the type of mask. Something like a non-invasive ventilator is far closer to "a mask that would breathe for me while I slept" than CPAP. I used one for a time due to central sleep apnea - I'd go for 10s of seconds at a time without even _attempting_ to breathe (as opposed to obstructive apnea, where you attempt to breath but struggle due to the airway collapsing). Unfortunately it didn't help me that much (even with it, I would still not breathe properly which was reflected in my O2 sat. IIRC) and it aggravated other health issues, so I stopped using it after 4-6 months (which, when one of the first things I read after diagnosis was along the lines of "Rarely, CSA may result in sudden death", isn't a choice I made lightly!).