Windows 11 PC sometimes won't 'wake up' from sleep mode

[hauckeye]

I recently bought a new Dell Windows 11 desktop. I usually turn it on in the morning, shut down at night and when I'm not using it, it goes into sleep mode. I wake it up by hitting the space bar and moving the mouse. However, occasionally, it won't wake up. Then I have to hold the power button in until it shuts down and then turn it back on. Then I see a message about Windows not loading correctly. I click restart and it boots up just fine. Any ideas on why it sometimes won't "wake up" and how to fix it?