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Notification Wakes

What are these

Notification Wakes are when the Mac wakes up to display a notification on the screen. If there are a great many Notifications this can lead to battery drain while the Mac is asleep, especially when Notifications appear during the night.

Causes

During an insomnia task, the Mac received a notification (say new e-mail, tweet, App Store updates, or Apple promotion for iCloud, Apple TV+, AppleCare, next version of the macOS), so it then wakes the Mac up to display the notification on the screen.

Solutions

  1. Enable "Do Not Disturb for Screen Off" or unselect "Allow Notifications when screen is sleeping" in the "Notifications" pane of System Preferences.
  2. Select "Disable Wifi while sleeping" in the Settings window. Albeit if this Mac is connected to the internet via Ethernet, it will not prevent it.
  3. Unselect the "Keep network connections alive" and "Wake for Network access" options in the "Settings" window of "Sleep Aid".