Asya Karapetyan
Content marketer, who specializes in Mac how-to guides
May 5, 2022
12 minutes to read

With the Mac sleep mode, you can continue working on your computer at any time and don’t need to wait for the system and programs to load, like when you switch off your Mac. However, you might want to stop your Mac from sleeping in some cases. This article will explain how to turn off sleep mode on your Mac.

mac sleep settings

Contents

  1. What is Mac’s sleep mode?
  2. How to keep Mac from sleeping?
  3. How to change when Mac goes to sleep?
  4. How to close the Mac lid without it sleeping?
  5. FAQs
Before we start
Since all your unsaved documents, data, and running processes are stored in the RAM in sleep mode, we recommend you periodically optimize RAM usage on your Mac. You can do this with MacCleaner Pro from Nektony.

MacCleaner Pro allows you to find and close memory-consuming apps and clear inactive RAM. Also, with MacCleaner Pro, you can clean up all junk files from your drive, like caches, duplicate files, leftovers from previously removed applications, and so on.

What is Mac’s sleep mode?

Mac’s sleep mode is an option on macOS that turns off the display, puts the processor into energy-saving mode, and stops the hard drive and background processes. Sleep mode stops system processes on your Mac without needing to shut it down. When you close your MacBook, it automatically goes to sleep. Also, you can manually enable the sleep mode any time you need it.

Generally, on macOS, there are three types of sleep modes. Each of them has distinctive features:

  • Sleep
    In this mode, all your unsaved documents, data, and running processes are stored in the RAM. The power continues to be supplied to the device’s RAM. The system consumes a minimum of energy because graphics and cooling are not working.
  • Hibernation
    All your documents, data, and running processes are copied from RAM to the drive in this mode. The drive reserves an amount of memory approximately equal to the amount of RAM on the computer. It takes more time to enable this mode, but Mac does not consume any power during hibernation. It is the same when Mac ‘wakes up.’ It takes longer because data is being copied from the drive to RAM.
  • Safe sleep
    In this mode, data from RAM is copied to the drive, but your Mac itself is not powered off, so working documents are stored both in RAM and on your disk. When your Mac ‘wakes up’, it takes the same time as in normal sleep mode, but it creates a backup from RAM in case of a power outage or a complete discharge of the battery.

Here is how to enable sleep mode on Mac:

Way 1

  1. Go to the Apple Menu.
  2. Click Sleep.
apple menu showing how to turn on sleep mode on Mac

Way 2

If you have a MacBook, close the lid, and your system will go to sleep in a few seconds. Once you open the lid, your Mac wakes up.

Way 3

You can use one of the following shortcuts to enable Sleep mode:

  1. Control + Shift (⇧) + Power button
  2. Command (⌘) + Option (⌥) + Power button

How to keep Mac from sleeping?

You might want to prevent your Mac from sleeping. Apple provides such an option, as you can change Mac sleep settings. After stopping your computer from automatically sleeping, you can use one of the ways above to enable Sleep manually.

Steps to keep your Mac from sleeping:

  1. Open System Preferences.
  2. Go to the Battery section.
  3. Select Power Adapter in the sidebar.
  4. Disable the option, “Prevent your Mac from automatically sleeping when the display is off.” System Preferences showing the option to turn off sleep mode
  5. Ensure that the schedule for sleep mode is not turned on. To do this, switch to the Schedule section from the sidebar and disable Sleep. System Preferences - battery -Schedule Sleep

After this, your Mac won’t automatically go to sleep. Whenever you need to enable automatic sleep mode again, open System Preferences and turn on the appropriate options.


How to change when Mac goes to sleep?

On a Mac, you also can schedule your computer’s sleep and wake times. Here is how:

  1. Open System Preferences.
  2. Go to the Battery section.
  3. In the sidebar, click Schedule. Here you can schedule specific times for your Mac to start up, shut down, sleep, or wake up.
  4. Tick the checkbox for the Sleep option and set up when you want your Mac to go to sleep. shcedule sleep on mac

How to close the Mac lid without it sleeping?

By default, when you close a MacBook lid, it automatically goes to sleep. However, you can change this and use a closed MacBook connected to an external monitor with an external mouse and keyboard.

Here is how to keep your MacBook awake when you close the lid:

  1. Open system Preferences.
  2. Click Battery.
  3. Switch to the Power Adapter section.
  4. Move the slider to the Never point on the “Turn display off after” line. turn off display on mac
  5. Uncheck also the option, “Prevent your Mac from automatically sleeping when the display is off.”
Note: Apple allows you to keep your MacBook from sleeping with the lid closed only when you enable energy-saving settings and plug in an external monitor.

If you want to use your MacBook with an external monitor, do the following:

  1. Plug your MacBook into power.
  2. Connect your MacBook to an external monitor.
  3. Close your MacBook’s lid. Its display will not turn off.

Conclusion

Now you know how to stop your Mac from sleeping. We hope this guide helped you learn more about Mac sleep settings. If you still have questions, check the FAQs below or leave your questions in the comments to this article.


FAQs

How do I keep my Mac screen on constantly?
Why does my Mac close everything when it sleeps?
Should I shut down my MacBook every night?

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