Just came here to tell you all how utterly hopeless this situation is. I've been having this exact issue for over 2 years now, so long I can't even remember exactly when it started, so that part of my being able to help is long gone. I'm at the point where I'm ready to sell off this PC and start over.
I'll put my PC to sleep and it will wake up at completely random points. Sometimes a minute or two after I put it to sleep, sometimes hours afterwards. Sometimes it goes back to sleep, sometimes it just stays awake.
I have tried literally every. single. solution. There is nothing you can link to me that I haven't tried over the past few years - including taking it to the useless repair shop in town who had it for over a month and a half and said they fixed it. It isn't fixed.
If you have some abstract ideas that are extremely uncommon, I'm willing to try. Thanks in advance.