I recently got a new MacBook Pro (2019 model). With this computer, if the displays are sleeping (I often have an external monitor attached via USB-C dock), they will wake up for a few seconds when a notification comes in, and then they go back into power-saving mode. My previous MBP (late 2013 model) did not have this problem. I call it a problem as the computer is in my bedroom, and the momentary flash of light is waking me up sometimes at night. How can I stop this from happening? (Both Macs are running 10.14.6)

  • 3
    Have you tried using Do Not Disturb during these hours?
    – fsb
    Nov 7, 2019 at 15:40
  • @fsb DND is not on - I will try that this evening. (Although that wasn't on on my previous MBP...)
    – Conrad
    Nov 7, 2019 at 15:58
  • 1
    You could turn off Power nap too
    – anki
    Nov 7, 2019 at 21:05
  • 1
    @ankii Power Nap isn't applicable here - the MBP is not asleep, but awake with screen savers on.
    – Conrad
    Nov 7, 2019 at 21:07
  • 1
    @fsb I checked the "Turn on Do Not Disturb: When the display is sleeping" option and that seems to have done the trick. If you'd like to answer this question I'll mark it as the answer.
    – Conrad
    Nov 8, 2019 at 20:44

1 Answer 1


You can turn on Do Not Disturb ("DND") mode to prevent distractions or notifications during specific timeframes.


Schedule Do Not Disturb

  1. On your Mac, choose Apple menu > System Preferences or open "System Preferences" directly from the icon.
  2. Click "Notifications".
  3. Select "Do Not Disturb" at the top of the sidebar.

You can stop notifications during a time period, when your Mac is in sleep (useful if you sleep near your Mac) by checking the "When the display is sleeping" box.

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If you want to receive call notifications even when Do Not Disturb is on, select the call checkboxes.

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