Well, last night I put the humidifier back on my Dreamstation Go Auto Travel CPAP and was extremely surprised when I woke up and saw that my AHI for the night was 1.0 and a new low since I've been using a CPAP. I've switched to using the travel CPAP as my everyday machine since the numbers have been much better. I think the difference is because the Dreamstation CPAP which was what was recommended by the sleep medicine doctor is a normal continuous pressure machine and the Dreamstation Go is an Auto CPAP (automatically adjusting pressure PAP machine). Both have the same settings recommended by my doctor but the travel CPAP has never caused my mask to vibrate when the pressure was too high. I think that's because it is continuously adjusting the pressure up and down whereas the CPAP keeps going up unless you hit the ramp button to start the pressure all over again starting at the 4 ppm ramp setting. I started using the Dreamstation Go on Oct 11th and the AHI numbers are consistently under 4 now which is what the sleep doctor wanted them to be. I'm still feeling tired during the day but hopefully that will continue to get better.