Top 9 Ways to Fix MacBook Not Waking Up From Sleep

The MacBook is a reliable and powerful device, cherished by many for its seamless performance. However, occasionally, users may encounter an issue where their MacBook fails to wake up from sleep mode. This can be frustrating, but fear not! In this article, we will explore the top nine ways to fix MacBook not waking up from sleep, helping you resolve the issue and get your MacBook back up and running smoothly.

Check Power Adapter and Battery Settings

1. Connect the Power Adapter

One common reason for MacBook sleep issues is a drained battery. Start by connecting your MacBook to the power adapter and let it charge for a few minutes. Then attempt to wake it up from sleep mode.

2. Reset the System Management Controller (SMC)

The SMC controls various functions on your MacBook, including sleep mode. To reset the SMC, shut down your MacBook, press and hold the Shift + Control + Option keys along with the Power button for around 10 seconds. Release the keys, then press the Power button to start your MacBook. Try waking it up from sleep mode to see if the issue is resolved.

3. Adjust Energy Saver Settings

Incorrect energy saver settings can cause sleep-related problems. To check and adjust these settings, navigate to “System Preferences” > “Energy Saver.” Ensure that the “Put hard disks to sleep when possible” option is selected and that the “Enable Power Nap” option is disabled. Test if the MacBook wakes up from sleep after making these changes.

Verify External Connections and Peripherals

4. Disconnect External Devices

External devices or peripherals may interfere with the MacBook’s sleep function. Disconnect any connected devices such as printers, external drives, or USB hubs, and then try waking up your MacBook from sleep.

5. Reset the NVRAM The NVRAM

stores various settings on your MacBook, and resetting it can often resolve sleep-related issues. Shut down your MacBook, then power it back on and immediately press and hold the Option + Command + P + R keys simultaneously for about 20 seconds. Release the keys and check if your MacBook wakes up from sleep normally.

Address Software and App Conflicts

6. Update macOS

Outdated macOS versions can sometimes cause sleep-related problems. Ensure your MacBook is running the latest macOS version by going to the Apple menu > “System Preferences” > “Software Update.” Install any available updates and restart your MacBook. Test the sleep mode to see if the issue is resolved.

7. Check for Third-Party App Conflicts

Some third-party applications may conflict with the sleep function on your MacBook. To troubleshoot this, restart your MacBook in Safe Mode by holding the Shift key during startup. If the sleep problem disappears in Safe Mode, identify and uninstall the problematic app. Restart your MacBook again and verify if the issue persists.

Additional Troubleshooting Steps

8. Run Disk Utility

Disk errors can affect the performance of your MacBook, including sleep mode. Run Disk Utility to check and repair any potential disk issues. Open “Finder,” navigate to “Applications” > “Utilities” > “Disk Utility.” Select your startup disk and click on “First Aid” to initiate the verification and repair process.

9. Perform a Clean macOS Reinstallation

If none of the above steps resolve the issue, a clean macOS reinstallation can help. Back up your important data, restart your MacBook in Recovery Mode by holding Command + R during startup, and choose “Reinstall macOS” from the available options. Follow the on-screen instructions to reinstall macOS and restore your data from the backup.


Experiencing sleep-related issues with your MacBook can be a frustrating experience. However, by following the nine troubleshooting methods outlined in this article, you can effectively address the problem and get your MacBook waking up from sleep mode as expected. Remember to start with simpler solutions such as checking power adapter connections and adjusting energy saver settings before moving on to more advanced steps like resetting the SMC or performing a clean macOS reinstallation. With patience and persistence, you can enjoy the smooth and uninterrupted performance of your MacBook once again.

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