For quite a long time my Mac Mini has refused to go to sleep. Recently my Macbook has been suffering from insomnia as well.

It took some digging, but after reviewing a dozen blogs, Stack Overflow posts, and Apple support articles, I got it sorted out.

Now they sleep like a baby.

I've compiled what I've learned into this list of (probably) every possible reason that a Mac won't go to sleep.

Mac Sleep Checklist

  1. Disable Network Sharing
  2. Unmount External Disks
  3. Delete Wi-Fi Printers
  4. Disable Handoff
  5. Turn off Bluetooth Devices

Tools to cure Insomnia

pmset -g assertions

By AJ ONeal

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