When I wear it I wake up in the middle of the night and feel like I am suffocating. Like it’s smothering me in my sleep. Even the expensive biPAP makes me feel this way. I have no such issues when I sleep without one.
That sounds like you’re not using it properly. Let me guess, a doctor set it up for you and set the pressure to 4cm or something ridiculously low. They love doing things like that.