There’s lots of evidence that MacBooks live longer if you don’t keep them 100% charged and plugged in at all times. If you leave your Mac connected to power and awake for long periods of time, its battery will start deteriorating over time. If you want to keep your Mac from sleeping when it’s plugged in, go to Power Adapter in the Battery settings and check the box next to “Prevent your Mac from automatically sleeping when the display is off.” Then, move the slider to adjust the ‘Turn display off after” setting. To prevent your Mac from sleeping when it’s disconnected from power, go to the Battery section of your Battery settings, and drag the “Turn display off after” slider to Never. Both can be found in System Preferences > Battery. How to keep MacBook from sleeping on macOS Big Sur and Montereyīig Sur and Monterey have two sets of settings - Battery and Power Adapter - that help control sleep mode, based on whether your Mac is plugged in or not. The process will differ depending on your macOS version. Since sleep mode is one of the built-in features on your Mac, you can control how it’s activated. So how to keep Mac from sleeping? There are a few ways. Using your keyboard to wake your Mac up could be annoying, especially if your screen auto-locks as well. For example, you could be comparing a spreadsheet with a physical report or downloading something, which requires your Mac to stay awake. Sometimes, however, it could interfere with what you’re doing. Generally, sleep mode works perfectly for what it’s intended to do: saving battery while you’re away from your MacBook. And once you click on the screen or hit any key, the computer will wake up instantly, without any loading process. In Sleep Mode, your Mac is still able to check your Mail app in the background, for example. That’s how it differs from a complete shut down. Sleep Mode essentially stops all your visible Mac activity but keeps the vital processes going.

Finally, the screen will go completely black.

Your screensaver will then be activated shortly and probably stay on for another 10 minutes. You’ve probably noticed that when you don’t use your Mac for a minute or two, the display would become slightly dimmed.

Turn off screen saver mac