I dunno why I individually responded to people when I should've just done this.
It's because one of your peripherals is set to wake state. You can google how to figure that out.
I turned my mouse and keyboard off from this. The mouse will wake it even if you move it. So f that. Keyboard. Some. Keyboards will wake just by having an active transmission (so manually turn it off every time - no thanks)
Now I manually have to touch my power button to wake.
This is an issue, but it’s not the issue. The issue is windows modern standby, trying to make users PCs always on like smartphones. Except the processors don’t support the same low power states as smartphones processors, and can be triggered by software like windows update to turn on even when disconnected from power and without functioning ventilation.
My macbook wakes up whenever I get up in the middle of the night to pee. This is without me touching the mouse or the keyboard or even the desk they're sitting on. This bothers me.
MacBook: "Oh, hey chickenlady... I see your up. Yeah, I couldn't sleep either. Why don't you come over here and spend some time in my soft white glow. We can just surf the web and consume for hours."
It's because one of your peripherals is set to wake state. You can google how to figure that out.
Sometimes that's a firmware issue. ASUS screwed up the ACPI DSDT for my 2021 G15 by leaving the sleep capabilities off of one of the NVMe slots - every time you'd tell the machine to sleep it would try, but because one of the NVMe slots wasn't capable the machine would then immediately rewake. I had to decompile the damned thing, patch it and load my patched table as an in memory override every single boot.
This is true for S3 sleep, but that's not the issue here. S0 sleep or Modern Standby just doesn't put the computer to sleep. Windows manages device power states instead of the BIOS, and it usually doesn't work out so well.
Overheating and battery drain caused by Modern Standby happen on laptops that are closed with nothing plugged in.
The "allow device to wake up computer" is already set to "off" in mouse, keyboard and other USB devices, together with any bios settings related to wake up. Yet still, at least once a week my computer is on in the morning, after i set it to Hibernate the night before. Sometimes it even power cycles straight away after i tried to turn it of.
Same today, when i was was out of the house for a few hours, and it decided to magically turn itself on, run windows update and restart.
I have to power it down and turn of the the power on the power-strip each night.
My work laptop has the same issue, except it does not care about the power strip switch and discharges the battery overnight instead!