It does look interesting, especially for patients with a low arousal threshold (those who are easily disturbed or woken up from sleep).

Unfortunately it isn't approved yet and isn't commercially available as a result.

Correct, but it also sounds like it might become available within the next year, though I did reach out to them and ask and received no response. It looks like the last updates on it were almost a year ago, so it makes me wonder if they've hit some kind of snag. They are planning on releasing their own hardware, but my ENT expects it may become available for many available "autoPAP" machines as a firmware upgrade.