I recently was given (prescribed) a new CPAP device as my former unit was no linger working well for me and my sleep was getting worse, again! It took about 15 days for me to get used to the new device and Rx; this unit is far more sophisticated with the data that it collects for my sleep doctor to monitor and review. For me, it has a scoring system that shows me how well I did the night before. It's basic, the best score is 100, the lowest being 0. Several nights it only registered a 35 or 40; I won't repeat here what "choice" words I had for the device those mornings 🤫🙄😡 Today I scored 95, I'm calling that an A+ and taking the win 😉🏆