When it comes to sleep or screensaver, most Mac users manage the settings the old fashioned way. Open up Energy Saver in System Preferences and set the time for the Mac and the screen to sleep. It’s simple. It’s set it and forget it.
Almost. Not quite. For example, if you set the Mac to sleep after an hour, but you leave your Mac after a few minutes and don’t come back, the Mac stays awake until the hour is up.
Add the Should I Sleep app to your Mac and it using face recognition to determine if you’ve gone or you’re still around. If you’re gone, it puts the Mac to sleep. If you’re still there, but not using the keyboard at the moment, the Mac stays awake.
Should I Sleep uses your Mac’s built-in iSight camera to detect your face or motion in front of the Mac. This is a good option for anyone using an external screen on the Mac. It even listens to ambient sound near the Mac.
Preferences give you options for start up, detection accuracy and sensitivity thresholds for both motion and audio. The Menubar selection displays toggle options for Face Detection, Camera Motion, Sound Activity, and External Display. You can also set the Mac to not sleep for a specified amount of time.
Should I Sleep is surprisingly inexpensive to start, but has in-app purchase options for specific sensors and extra display.