I had some momentary readings lower than 80 during a sleep study prior to going on CPAP. I didn't snore, or choke, or anything. Just ... didn't breathe. With CP

I had some momentary readings lower than 80 during a sleep study prior to going on CPAP. I didn't snore, or choke, or anything. Just ... didn't breathe. With CPAP, 98% all the time.