KB:PowerCfg.exe SleepStudy
The "Sleepstudy" option from the PowerCfg.exe cmd generates a pretty cool power state report for your machine where you can see how many times the machine went to sleep, the screen went offline, and much more... powercfg /sleepstudy https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/powercfg-command-line-options#option_sleepstudy