I had that same problem, if you don't mind the maintenance task running and just want it to be able to go to sleep afterwards you can try this:

Go to Start -> Type: "cmd" and right-click "run-as...

Yep, that was it. Thank you very much! I didn't even realize that setting was added.

Does anyone have the Powershell method working on Windows 10 1903? I had the DisableRealtimeMonitoring working fine on 1809 with shortcuts, but since I've updated to 1903 they no longer toggle....