Macs are designed to go to sleep when not in use, which helps conserve power. However, there are times when you may want to keep your Mac awake. For example, if you’re watching a movie or downloading a large file, you don’t want your Mac to fall asleep in the middle of it.
Fortunately, there are a few easy ways to keep your Mac from sleeping.
This article explains how each method works.
Stop turning off the screen on a Mac
Hibernate is a great way to save power and extend your Mac’s battery life. The screen darkens when your Mac goes to sleep and your computer switches to low power. To wake it up, you have to press any key on the keyboard or click the mouse button. Sleep mode uses very little power, so it’s a great way to save power when you’re not using your Mac.
While the power-saving features of Mac computers are undeniably useful, there are times when you don’t want your screen to turn off automatically. For example, if you’re in the middle of a long movie, it can be frustrating having to keep your finger on the trackpad to keep the screen from dimming.
Sleep mode also presents technical challenges. First, it can cause programs to hang or crash when you try to resume work. This can be frustrating and waste precious time that could have been spent working. In addition, sleep mode can sometimes cause file sync issues, leading to data loss.
Fortunately, there are several tools you can use to prevent your Mac from falling asleep.
Let’s see how each tool works:
System Preferences (often abbreviated as “SysPref” or “SP”) is an application included with the macOS operating system that allows users to change various system settings, such as the theme, desktop image, Bluetooth devices, and more.
While some of these preferences can be changed in other ways (such as Finder), System Preferences is generally the most convenient place to change how your Mac works. If you want to prevent your Mac from going to sleep, you can do this by opening the Power Saver pane in System Preferences and moving the “Turn off screen after” slider to “Never”.
Here are detailed steps to tackle this:
- Click the Apple logo in the top left corner of your screen and select System Preferences from the pop-up menu. You can also open Launchpad, type “System Preferences” and then click the icon that appears.
- After opening System Preferences, click the lamp icon to open Energy Saver settings.
- In the Power Saver panel, you should see a slider that allows you to set how long your screen stays lit before it eventually turns off. Slide to “Never” on the right to permanently prevent your screen from turning off.
Terminal provides a way to prevent your Mac from falling asleep without having to adjust your system settings. But what is it?
Terminal is a text-based interface used on Macintosh computers. When you open Terminal, you will be presented with a command prompt. You can then type commands, which are interpreted and executed by the computer.
Terminal provides a way to access the underlying Unix operating system, which is the foundation of macOS. This allows you to perform tasks that are otherwise unavailable, such as low-level file operations and adjusting your system settings.
Here’s how to use Terminal to prevent your screen from turning off:
- Click the Launchpad icon in the Dock and type “Terminal” in the search field.
- Tap Terminal.
- Type the following command: “caffeine”.
- Press Enter.
And that’s it! This will keep your Mac awake indefinitely or until you close Terminal.
The Caffeine App
The Caffeine app prevents your computer from going to sleep, so you can enjoy an undisturbed view (or even a cup of coffee) while you work. The app is very easy to use and completely free.
How to use the app:
- Download the app from the App Store and install it on your Mac.
- Click the Launchpad icon in the Dock and type “Caffeine” in the search field. This will launch the app.
- Check the box next to “Start caffeine automatically at login” in the “Welcome to Caffeine” window if you want the program to run automatically when you start up your Mac.
- Check the box next to “Enable caffeine on startup” to prevent your machine from sleeping.
- Close the window.
The app runs in the background and uses very little CPU power, so it won’t slow down your computer. Whether you’re working on a project or just enjoying a cup of coffee, the Caffeine app is a great way to stay awake and productive.
Stay more productive
Screen saver settings on a Mac are designed to save power and extend the life of your screen. By default, the computer turns off the screen after it has been inactive for a certain amount of time.
However, there are ways to change these settings so that your screen stays on while you work. You can change your Energy Saver preferences or use the “caffeine” command in Terminal. Alternatively, you can opt for a third-party app like Caffeine.
Whichever method you choose, preventing your Mac from sleeping is quite simple.
Have you tried to prevent your screen from turning off with any of the tools discussed in this article? How did it go? Let us know in the comments.