Oh, and last night you can tell when I fell asleep. the SPO2 was high up, and then plunged below 0.8 and went up and down three times, then I started to climb and stabilize. It all happened in about 5-10 minutes.
This is most likely one of two things,
1. You are using ramp and the ramp pressure is set too low or the ramp time is set too long.
2. You are seeing oximetry artifact, probably motion artifact, and the desat statistics are not accurate.
If you want the forum to help you, post a detailed chart. You can do this by using a URL that maintains your identity as confidential.