To change how long it takes for your PC to go sleep, first launch Settings by pressing Windows+i on your keyboard.
RELATED: Should You Shut Down, Sleep, or Hibernate Your Laptop? How to Adjust Your PC’s Sleep Delay in Settings That means you’ll save some power typically used by the screen (or extend the screen’s lifespan), but your PC will still be able to perform background tasks when necessary. In Windows 11, you also have the option to turn off your PC’s screen but keep your PC awake in the background. While asleep, your PC’s screen will turn off as well. If you put your PC to sleep, it goes into a low-power mode that temporarily shuts off certain parts of the hardware to save power.
In Windows 11, sleeping and turning off your screen are two different (but related) things.