I found out I had sleep apnea mostly due to coincidence. Eventually I got jaw surgery to fix it, but there is a surprising anecdote: Shortly after I started us

I found out I had sleep apnea mostly due to coincidence. Eventually I got jaw surgery to fix it, but there is a surprising anecdote: Shortly after I started using a CPAP, at a networking event I met someone who worked at a mental health clinic, and he told me that many of their patients with schizophrenia had a pressure setting of 18 or 19 bars. Apparently disturbed sleep can cause some rather severe mental illness. I was at 16 bars at the time. (I no longer use a CPAP post surgery.) About a year prior, there were a few times that I wondered if something actually happened, or if I was misremembering a dream. It makes me wonder if some severe forms of sleep apnea can make dream context confusing enough that it's hard to bucket memories between dreams and actual events?