Use the drop-down menu to the right of "Put the computer to sleep" to adjust the length of time before the computer goes to sleep. Click the "Save Changes" button to immediately apply your changes.

By default, Windows 10 puts your display to sleep in under half an hour, while a PC will typically hibernate after a few hours. Here's how to configure these settings.

To set the sleep timer on Windows 10, you'll need to find and open your computer's "Power & Sleep" menu.