Was running into the same previously. Putting my desktop to sleep only to find it waking up in the middle of the night, and for some reason not going back to sleep afterwards. I believe the solution for me previously was disabling wake timers. Hasn’t been an issue since. However this is a much larger issue on things like laptops where preventing sleep while in a backpack could lead to excessive heat generation. Infuriating that it’s forced by default
I disabled wake timers, wake on lan, and peripherals waking from sleep. It worked for a bit until an update completely destroyed my computers ability to sleep at all. The screens would shut off but nothing else. Still running, still logged in.
Enabled hibernation because fuck you windows.
My pc randomly wakes up from hibernation.
I hate finding it on in the morning.
The lazy workaround is to hibernate, then wake it, then shut it on the boot screen. That way it stays off, but I still get to restore my session.
I’ve tried more reasonable solutions but had no luck, and am tired.