How to Put Your iMac Into Sleep


An iMac will go into "Sleep" mode automatically if it senses inactivity over a long period. Optionally, put your iMac to sleep on your own if you plan not to use it. Put the display monitor, the hard drive or both to sleep to save energy. As opposed to turning off the display and hard drive completely, putting the iMac to sleep allows you to return to work on your iMac quickly if need arises.

  • Press and hold the "Control, Shift and Eject" keys simultaneously to put the display to sleep quickly. Press and hold "Option, Command and Eject" keys to put the hard drive to sleep. Place your finger on the mouse or press a key to wake up the display and hard drive.

  • Adjust the sleep mode options to put your iMac to sleep automatically. Click on the "Apple" key and select "System Preferences." Click on the "Energy Saver" icon.

  • Click on "Show Details." Adjust the "Put the Computer to Sleep when it is Inactive" slider according to your personal preferences -- from one minute to three hours. Adjust the slider all the way to the right to select "Never" if you do not want your iMac in sleep mode automatically.

  • Adjust the "Put the Display(s) to Sleep When the Computer is Inactive" slider according to your preferences -- from one minute to three hours, or select "Never" on the far right. Click "Close" to save settings.

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  • Photo Credit Brian Kersey/Getty Images News/Getty Images
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