Third-Class Medical with Sleep Apnea?

[JimNtexas]

My AME told me the CPAP usage requirement was:

CPAP report in the preceding 3 months ( covering more than 31 days, that show
(a) Greater than 75% of nights with >= 6 hours of usage.
(b) AHIs down below 6

I brought the CPAP printouts and letter from my family doctor. After the AME made a phone call to the FAA he was able to issue a certificate with an SI that day.

The SI (but not the whole physical) has to be renewed every year.