Keep Your Mac From Going To Sleep App

Apple does mention about the effectiveness of App Nap in their official website:

  1. By default, OS X automatically sends your machine into sleep mode as soon as you close the lid. However, a third-party app can help you prevent your Mac from dong this. InsomniaX lets you keep your MacBook awake even when the lid is closed so that you can continue to listen to music or whatever else you were doing on it.
  2. Feb 17, 2016  Keeping your Mac awake is a super easy step and you don’t even have to change your beloved System Preferences around to do it. You can either use a free Mac App Store app for the job, or you can enable the feature from the Terminal app that’s already on your Mac.
  3. Available on the Mac App Store for 99p here, this little utility will prevent your Mac from going to sleep. Amphetamine A free download from the Mac App Store here, Amphetamine keeps your Mac.
  4. The app is a small wrapper around Apple's caffeinate command line utility. All current versions of macOS ship with this tool by default. You can read the manual page here. Is this dangerous? This utility will not harm your Mac because it is based on an official command line tool by Apple. BUT I cannot guarantee anything, so use this tool AT.

Mar 08, 2020  Caffeinated is a Mac Menu Bar App that prevents your Mac from going to sleep, dimming your screen or starting the screensaver. It is available worldwide. Caffeinated is not only very convenient but also easy to use.

“… OS X can tell when an app is completely hidden behind other windows. And if that app isn’t currently doing something for you — playing music, downloading a file or checking email, for example — App Nap conserves valuable battery life by slowing the app down.”

Keep Your Mac From Going To Sleep App Free

The screen of your Mac automatically turns off after a certain duration of inactivity. Eventually, the entire Mac goes into sleep mode depending on your configured power settings. If you have a background app running with the App Nap feature enabled, it won’t be able to prevent your Mac from going into sleep mode. And once sleep mode is activated, all your active apps will stop working.

When you resume work on your Mac, you might notice that background activity (for example, downloading files via μTorrent or other download managers) have been paused or that the internet had been disconnected while in sleep mode. Of course, OS X did this to save power, but the feature is not really helpful in this case.

If App Nap is disabled for a particular app, it won’t allow your Mac to go into sleep mode while it’s active, even in background. You can see this in action when you’re playing music in iTunes and the display turns off. In this case, iTunes keeps playing music in the background. This is because App Nap is disabled by default for iTunes.

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Keep your mac from going to sleep apparel

Page Contents

  • 2 Prevent Mac from sleeping

Prevent App Nap for specific apps

Mac OS X gives you the option to manually turn off App Nap for certain apps. If a particular app has the Prevent App Nap option, you can enable it to ensure the app will continue running in background even when your Mac inactive over a long period. The following steps below will help you to enable Prevent App Nap for specific apps.

  1. Open Finder on your Mac and click on the Applications tab from the left pane.
  2. Right click / Ctrl + Click on the app you want to disable App Nap for and click on Get Info from the menu.
  3. Look for the Prevent App Nap option under the General section of the App Info window. If present, check on it to disable App Nap for that particular app.

Now, the App Nap feature won’t affect the activity of this particular app.

Prevent Mac from sleeping

As mentioned earlier, OS X’s native feature to prevent App Nap may not be available for all the apps. If you want to make sure a particular app is not paused automatically, but it doesn’t have the Prevent App Nap option in its Info window, there are some third party alternatives available to help you achieve the same.

Prevent Mac from sleeping when downloading

Caffeine is a useful app that sits on the Mac OS X menu bar and prevents your Mac from automatically going to sleep. Thus, it helps applications to keep running over long duration of inactivity. Depending on your requirement, you can activate Caffeine from a few minutes to a few hours or even indefinitely, when you need background tasks to be performed without any interruption. You can even turn off the display by using the Ctrl+Shift+Eject or Ctrl+Shift+Power shortcut to save power.

Get Caffeine from the Mac App Store.

However, if you want to disable sleep on Macbook even when the lid is closed, Caffeine won’t help you in this case; NoSleep would be a better option here.

Keep Mac From Sleeping App

Prevent Mac from sleeping when lid is closed


NoSleep is similar to Caffeine in the way that it allows applications to keep running over long periods of inactivity. But unlike Caffeine, which only prevents your Mac from automatically going to sleep, NoSleep disables the sleep feature completely as long as it is enabled. This means your Macbook won’t go into sleep mode even if the lid is closed and background apps will keep running without any interruption. But it also means that your Mac might probably consume a lot more power when NoSleep is enabled.

Stop Windows 10 From Going To Sleep

To save some power when NoSleep is active, you might want to lock your Mac’s screen with the Lock Screen option from the NoSleep menu. Alternatively, you may just turn off the display by using the (Ctrl+Shift+Eject) / (Ctrl+Shift+Power) keyboard shortcut.

Get NoSleep from MacUpdate.

Note: OS X also has a a native option to permanently disable sleep on your Mac. But this is not recommended to be used over the long term.

The apps mentioned above will prevent your Mac from automatically going to sleep. Hence, if any of the applications are using an Internet connection, the connection will remain active even if the screen is locked or your Mac is not in use for a long time.

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