7 Fix Sleep Mode Option Greyed out on Mac (MacOS Sequoia/Sonoma)

Are you unable to sleep your Mac on Break or Offline at the office or Home? That prevents you from re-work and shut down your Mac completely. Becuase of Sleep option is grayed out or Read-only under the Apple logo on the Top Mac menu.

In such a case, you have to follow the soft solutions first. Then you have to diagnose a problem in detail if you can’t re-enable the sleep option with some time-consuming process as explained in this troubleshooting & recommendations.

IN THIS ARTICLE

Fix Sleep option is Greyed Out or Not Working on Mac

Solution 1: Safe Mode

Ensure you are on Administrator privileges for the Mac. Put your Mac in safe mode, and check if the issue is caused by the installed apps running on Mac in the Backgroud or on Startup System. Make sure that your Mac has an M1 or Intel Processor. And go through the steps below,

For M1 Mac,

Shut down your Mac. After 10 seconds, Press and hold the Power button until you see the startup loading items with two options: Startup volumes and Options.
Select Startup volume (Macintosh HD),

Press the Shift key on the keyboard and then click the Continue in Safe Mode button.

Please wait for a few seconds. The issue is fixed during the startup of your Mac, so it may take some time. Now, you will move to a login screen.
Log in with a Mac password.

That’s it. Your issue might be fixed.

Once the issue is resolved, restart your Mac to exit Safe Mode.

Steps to Enter Safe Mode for Intel Mac Users,

Shut down your Mac. Wait for 10 seconds, and turn on your Mac. Now, immediately, Press and hold the Shift Key until you see the Login screen on Mac with the Safe mode label.
Log in to your Mac and check if the issue is fixed or not.
Now, you are done. Once the issue is fixed, restart your Mac to exit safe mode.
That’s it.

Solution 2: Fix Using Powermanagment Terminal Command

It might be that your Mac was prevented from sleeping due to the Wrong power management settings. Reset it and allow it to Sleep using the terminal command below. Works on both M1 and Intel Mac.

1→ Open Terminal app on Mac. [Go to finder > Applications > utilities > Terminal].

2→ Type the command:

sudo defaults write /Library/Preferences/SystemConfiguration/com.apple.PowerManagement SystemPowerSettings -dict SleepDisabled -bool NO

and hit the Return on run command.

3→ Enter your Mac login password. And that’s it.

4→ Check the Sleep option under the Apple logo or Check After Restart your Mac.

Still, your Mac won’t sleep using Option under the Apple logo. That might be a Corrupted file system or a Bug. Reinstall a new copy of macOS, as explained in the next solution.

Solution 3: Reinstall macOS

Without losing any data from your Mac system, we can reinstall the latest supported macOS on your Mac in recovery mode. Follow the steps for M1 or Intel Mac as given below,

Shut Down your Mac.
On m1 Mac: Press and Hold on the Power button until you see the Startup loading items, Startup volumes, and Option.
Click on the Options > Next screen to see the macOS recovery screen.
On Intel Mac: Press and hold Command + R Key, until you see the macOS recovery screen.
Select Reinstall MacOS. Now, your Mac will download the latest supported macOS and install it on your Mac as you follow the on-screen setup. It will take time depending on internet connectivity and the Size of the Data on Mac.

Solution 4: Set Power Saver mode as the Default

Some Power-saving settings like “Prevent your Mac from automatically sleeping when the display is off” do not handle requests due to inappropriate settings. Let’s fix it and set it to default.

Go to the Apple Logo from the top Mac menu.
Click on System Settings
Select “Energy” from the left sidebar.
On this page, check that all toggles are turned ON. That’s it.

Now, restart your Mac system, and the Check Sleep option is Clickable under the Apple logo.

Solution 5: Update your MacOS

Is your Mac outdated? Running an earlier version of MacOS or installing Beta MacOS [Remove macOS Beta]. And keep your Mac updated with the Latest compatible software you use.

Check, Go to the Apple Logo > System Settings > General > Software Update > Download and install.
That’s it.

Solution 6: Clean install macOS:-

A clean install is also part of fixing the software issue on your Mac system. However, there is a risk: your data will be erased first, and you will need to install a new copy of macOS using a Bootable USB Installation Drive.

Attention! I highly recommend taking backup in the time machine before Clean installs macOS.

Here’s a quick step-by-step tutorial on a clean install of macOS on your Mac.

Solution 7: Contact Support

If you think the Problem is big with your Mac system, then you should contact Apple support online, call or book an appointment at the Apple Genius Bar, or visit a nearby Apple service center. Also, share your comments in the discussion box.