How to Turn Off Sleep Mode on a Mac, MacBook Air, or iMac

The Sleep mode on a Mac puts your MacBook into a state of deep inactivity when you're not using it, thus conserving power. It's the best way to save your MacBook's battery and get the most out of your battery life.

However, there may be times when you don't want your Mac to go to sleep while you're away from it for a longer period – wondering how to turn off sleep mode on Mac? It's understandable that it can be frustrating if your Mac goes to sleep when you don't want it to! Here are five practical ways to turn off sleep mode on your Mac:

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Solution 1: Disable Sleep Mode on Your Mac Through System Preferences

To prevent your MacBook from sleeping, go to “System Preferences,” then select “Energy Saver.” Check the box that prevents your MacBook from sleeping when the display is off, and set “Turn display off after” to “Never.”

Here are the best steps to follow to turn off Sleep mode on your Mac using System Preferences:

Step 1: Click the Apple menu Click the apple icon in the top-left corner of the screen.

Step 2: Choose “System Preferences.”

From the drop-down menu, select “System Preferences”

Step 3: Click the “Energy Saver” icon, which looks like a light bulb.

4. Check the box next to “ Prevent the computer from sleeping when the display is off. ”

Uncheck “Put the hard disk(s) to sleep when possible.”

Finally, switch “Turn display off after” to “Never.”

However, occasionally an error might occur that causes System Preferences to become unresponsive on your Mac. In such a case, you can refer to the following article to resolve the issue.

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Fix 2: How to Turn Off Sleep Mode on Mac via Terminal

Did you know that you can put your MacBook into a temporary sleep mode? Well, you can, and it's done using a command called “caffeinate” in the Mac Terminal. This command prevents your MacBook from going to sleep as long as the Terminal window is open. Here's how to use the Terminal to stop your Mac from sleeping:

Step 1: On your Mac, open the Terminal app from Applications > Utilities.

Step 2: Type caffeinate in the terminal, then press "Enter."

Type “Caffeinate” and press Return.

You'll see the cursor move to a new line, and “caffeinate” will appear in your terminal window next to your username. Your MacBook will now stay awake, just like you after your morning coffee.

But keep in mind that this works only as long as the terminal window remains open. If you try to close it, you will get a warning message asking whether you want to continue.

If you click Sleep, your Mac goes to sleep according to the energy-saving settings in System Preferences.

If your Mac isn't going to sleep after you've locked the Mac screen, don't panic; try the effective solutions from the article below.

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Fix 3: Prevent Sleep When You Close Your MacBook's Lid

When you close the lid of your MacBook, it often goes to sleep by default. This conserves battery power, and lets you get back to work as soon as you open it up and enter your password.

But if you use an external display while working and want to close your laptop, you don't have to switch to sleep mode. Here's how to prevent your MacBook from sleeping when you close the lid, for both macOS Sonoma and Ventura:

Step 1: Click the Apple icon > System Preferences.

Step 2: Select “Display” from the sidebar.

Step 3: Click the “Advanced” button.

Step 4: Turn on “Prevent the screen from sleeping when the display is off.”

Step 5. Click the “Finish” button to save your changes.

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Fix 4: Put Your Mac to Sleep

The advantage of Sleep mode is that it helps conserve your MacBook's power, and allows for a quick resume of work. It's especially useful for preserving battery life when you know you'll be returning to your computer soon.

This can be a convenient and useful feature for MacBook users who frequently need to put their computer to sleep. Here's how to set your MacBook to sleep automatically after a specified time:

Step 1: Click the Apple icon > System Preferences.

Step 2: Click on “Energy Saver.”

Step three: Choose your “plan.”

The fourth step is to set the parameters properly.

You can set your Mac to start up or wake, and to sleep, restart, or shut down, on weekdays, weekends, every day, or on specific dates.

When setting your sleep mode on macOS Ventura, you might encounter an error message that says, "macOS Ventura WindowServer is preventing your Mac from going to sleep." If you're seeing this issue on your Mac, don't worry; read on to find out how to resolve it.

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Solution 5: Turn Off Sleep Mode on Your Mac via an App

For most MacBook users, preventing your Mac from sleeping by following the above steps is straightforward. There are also apps available that let you delay your sleep settings. Here are two top-rated apps to prevent your Mac from sleeping:

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Do you like the idea of controlling your Mac's sleep settings with a simple interface? If so, Owly is an all-in-one app to stop your Mac from sleeping.

This great little app shows an icon in the top menu bar of your MacBook. Clicking on Owly opens a menu that lets you set a duration for preventing your MacBook from going to sleep.

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✨Amphetamine

< a href="https://apps.apple.com/us/app/amphetamine/id937984704?mt=12" rel="noopener" target="_blank">Amphetamine< /a> is an app designed to keep your Mac awake with its triggers. With this seamless app, you can quickly set up conditions for your Mac to stay awake, like when it's connected to an external display and running specific apps.

You can then toggle these triggers on and off from the main screen, and take total control over what your computer does when you're away, like sleeping or starting the screensaver.

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Additional Tip: Recovering Unsaved/Lost Files After Sleep Mode

Switching to Sleep mode pauses the save progress on your Mac, resulting in lost or unsaved files. In such cases, you should resort to using a data recovery software like Data Recovery Wizard for Mac to restore lost files without a backup.

This professional tool is a one-stop solution to your data loss problems, helping you recover permanently deleted files from Fusion Drives, hard drives, SSDs, and more on your Mac, including videos, photos, documents, audio files, emails, and more. It also supports SD card recovery on Mac and file recovery from Time Machine backup drives, USB drives, cameras, and more.

Here are three quick steps to recover lost files:

Step one: Search for the lost files.

Select the disk location where you lost your files (it can be an internal HDD/SSD or a removable storage device). It works on macOS Sierra, High Sierra, Mojave, Catalina, Big Sur, Monterey, Ventura, and the latest Sonoma. Click the “Find Lost Files” button.

Note: Before data recovery, it's better to click “Disk Backup” from the left sidebar and create a backup for your Mac to prevent further data loss. After the backup, the software can recover data from the Mac backup, and your computer can write new data again.

Step 2: Preview the scanning results

Data Recovery Wizard for Mac will scan the disk volume you select immediately and display the scanning results.

Step 3: Select the files to recover

From the scan results, select the files you want to preview and then click the “Recover” button to get them back.

Conclusions

The answer to "Why won't my Mac go to sleep" lies in the settings. Here are five primary ways to prevent your Mac from sleeping: using the Terminal app, scheduling sleep mode, closing the lid, and system preferences. You can disable sleep mode on your Mac by carrying out any of these methods. Additionally, if you accidentally lose data in the process, downloading the Data Recovery Wizard for Mac tool is crucial!

FAQ: How to Disable Sleep Mode on a Mac

Read the following frequently asked questions to gain a better understanding of the topic:

How do I turn off the screen timeout on my Mac? To adjust or turn off the screen timeout settings on your Mac, follow these steps: 1. Click the Apple menu (the apple icon in the top-left corner of the screen). 2. Select "System Preferences." 3. Click "Energy Saver" or "Battery" (depending on your Mac model and macOS version). 4. In the left pane, make sure the "Power Adapter" option is selected (if you have a laptop, you'll see two options: "Battery" and "Power Adapter"; choose "Power Adapter"). 5. On the right side, you'll see a slider labeled "Display sleep." Move it all the way to the right or click the dropdown menu next to it and select "Never" to prevent the screen from dimming or turning off automatically after a period of inactivity. With this setting, your Mac's screen will not turn off due to timeout. However, note that keeping the screen on for extended periods can increase power consumption, so it's recommended to disable this feature only when necessary.

Click the Apple icon, then select “System Preferences” > “Battery” (MacBook) or “Power Adapter” (MacBook Pro). Drag the slider to “Never” to turn off the screen timeout.

2. How do I stop my Mac's screen from dimming?

To do this, open System Preferences, click on “Energy Saver,” and then drag the slider to the right labeled “Turn display off after” all the way to “Never.” From now on, your Mac will only go to sleep when you tell it to (by clicking the Apple menu and selecting “Sleep”) or by closing your laptop's lid.

Should I turn off my Mac's sleep mode?

A Mac uses very little power while in sleep mode, so it should be fine to run maintenance tasks while it's sleeping.