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Hi @katstoudt,
Welcome. Many people use the sleep tracking to help them keep tabs on their nighttime health. There's a lot of interest in how Fitbit might be used to help identify sleep apnea.
Here's some more information on sleep stages:
https://blog.fitbit.com/sleep-stages-and-sleep-insights-announcement/
Also, I hope you are following doctor's recommendations in regards to the CPAP. For some people, that machine is critical. Obviously, I don't know your situation, but felt I should say that.
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