In the Energy Saver dialog box, click the Show Details button. In This Article Choose the Apple key→System Preferences. How do I set my Mac to automatically sleep? Click Show All to go back to the main System Preferences window. Click Screen Saver, and then use the slider to choose 15 minutes (or less). How to Set Your Computer to Lock Your Screen Automatically From the Apple menu, choose System Preferences. How do I make my Mac screen stay on longer? Click the Prevent computer from sleeping automatically when the display is off check box.

How Do I Keep My MacBook On When I Close the Lid? Click the Apple icon in the upper left corner. How do I make my Mac not go to sleep when I close it? Drag the slider to match your desired sleep time. Set your Mac to Automatically Sleep After a Period of Time If you want your Mac to automatically go to sleep after a certain period of time, locate the slider labeled “Turn display off after” in Energy Saver preferences.

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