Somehow this is indicative of the difference between CA and TX. But my new sleep doctor has allowed my CPAP to adjust itself to my breathing. The CA tech guys set it to 8 cubic centimeters per second, which is like a rather fast flowing tap water pressure. But it's a pretty sophisticated machine that collects data about my breathing and the TX guy noticed some anomalies. So he's allowed it, sophisticated beast that it is, to figure out when I need a greater pressure up to 12 cubic cm/second.
How do I know it's working? It's 7am and I've just written this post in 45 seconds.