Sleep apnea diagnosis in 2017; a 60 pound loss in 2018; the next study called it marginal and my doctor said I could quit CPAP if I liked. By fall 2024 the 60 had returned along with 30 more, and in Oct 2024 OSA was diagnosed again. Back on CPAP, and this round I figured out how to view my sleep data and tune the clinical settings. The new pulmonologist wants my whole planned weight loss finished before another sleep study is ordered. So far 118 pounds are gone, and roughly 20 remain. Pressure is dialed to the minimum now, and CPAP may be unnecessary. Watch and ring data (Apple, Oura) show no breathing issues. Edit: nasal masks appeal to me but Im a mouth breather. Taping my mouth shut to try one triggered a panic attack. Ten-plus masks later, the F40 is my pick and I love it.