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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
- Enable "Do Not Disturb for Screen Off" or unselect "Allow Notifications when screen is sleeping" in the "Notifications" pane of System Preferences.
- 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.
- Unselect the "Keep network connections alive" and "Wake for Network access" options in the "Settings" window of "Sleep Aid".