Monitor won't wake from sleep, forced to reboot

Hi! So for the past few months, my desktop has an issue with waking from sleep. I thought I disabled any application from waking the PC on its own, but when I come back to my PC I often find it's just running, but the monitor won't wake. I unplug the HDMI, I press the power button once, press the keys, click/move the mouse - nothing. I am forced to do (what used to be) a cold boot by holding the power button and "restarting" even though I find my applications are still open when it turns back on. This happens constantly. I tried to use hibernate, which apparently doesn't exist anymore or something. I've looked it up to no avail, but my best guess is that there's a fast boot issue or some Windows 10 issue that's causing it. I'm really tired of fearing my brand new PC is just not going to wake one day due to artificial aging, and I'm honestly just super angry at this point. Does anyone know of a potential solution?