Waking, unrelated to CPAP therapy?

[lastmango]

67 yo male, healthy, active, and 15 year CPAP user. I believe that the therapy is working well and has for quite some time, my AHI is routinely around one or two only.

I find myself falling asleep immediately and sleeping very well until about 3am or 4 AM, and then wake up wide awake. I am done either awake or getting very poor sleep after that.

I know it may not be therapy related but wondering if anyone else experiences anything similar, and have found any success? I feel my sleep Hygiene is very good, for example, I stick to a regular bedtime, I don’t eat or drink much in the evenings, I stay off the electronics, etc.

Any ideas or feedback?

[Sleepzilla]

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[zonker]

Any ideas or feedback?

was this happening before cpap?