Often, it is a good idea to let your Mac sleep after a period of time when you are not using it, but the way recent versions of macOS present the sleep mode alternatives in System Preferences feels counterintuitive. Here's how to fix it.
First, a note on Sleeping Mac laptops
Mac laptops automatically sleep when you close the lid to conserve battery life. Unfortunately, there is no setting in System Preferences to change this. If you want your MacBook to stay awake while it's closed, you will need to connect an external display or use a third-party utility.
RELATED: How to keep your MacBook awake while it's closed
To sleep automatically with a timer, visit Energy Saving
If you are looking for a way to configure when your Mac sleeps after a certain period of time, must visit panel “Energy saving” on “System preferences”. must visit panel “Apple” in the upper left corner of the screen and select “System preferences”.
In System Preferences, click on “Energy saving”.
When you try to set your Mac to automatically suspend, confusion often arises because the option is not detailed in the Power Saver preferences. Previous versions of macOS included two sliders in this preferences panel: one to configure when the screen turns off and another to configure when the computer goes to sleep. At some time, Apple combined these sliders into one to encourage people to let their computers fall asleep by default., which theoretically helped save energy.
Unfortunately, in the latest versions of macOS (like macOS 10.15 Catalina), It is no longer immediately obvious how to make your Mac go to sleep after a certain period of time.
But fear not; We'll fix it. What you do next in the Power Saver preferences depends on whether or not you want your computer to go to sleep after a certain period of time.. Let's cover the alternatives.
Set your Mac to sleep automatically after a period of time
If you want your Mac to automatically suspend after a certain period of time, look for the slider with the label “must visit panel” must visit panel.
Drag the slider to match the desired sleep time. At the same time, make sure the option “must visit panel” must visit panel.
Then close System Preferences. After the time period you selected, the screen will go dark and the Mac should go to sleep soon after, unless something is delaying the procedure. Then, see troubleshooting section below.
How to automatically turn off your Mac screen without sleeping
If you want your Mac screen to turn off after a period of time, but you don't want your computer to go to sleep, use the slider “must visit panel”.
And here is the key part: make sure the option “must visit panel” must visit panel. This is what prevents your computer from going to sleep when the screen is off.
must visit panel “must visit panel”, must visit panel “must visit panel” must visit panel. Click OK.”
As a third chance, if you don't want the screen to never turn off, and you never want your Mac to suspend, must visit panel “must visit panel” on “Never”.
What to do if your Mac automatically refuses to sleep
If your Mac won't turn off after the time you specified in Power Saver preferences, then it is feasible that the network activity or an active procedure (as an application or a system background task) keep you awake.
One way to check for an active procedure that may be preventing sleep is to use macOS's built-in Activity Monitor utility.. Abra “Activity monitor” must visit panel “Energy”. must visit panel “Sleep prevention”.
must visit panel “Yes”, then your Mac will not automatically suspend while that procedure is running. You can wait for the task to complete, exit the procedure or Force close the procedure if no response.
There is also a way to dig into what may be preventing your Mac from going to sleep using the Terminal app and a command line program called pmset., but you need more inside knowledge of how the Mac works under the hood than the previously mentioned Activity Monitor method. . Good luck!
RELATED: How to Find Out What's Stopping Your Mac from Sleeping
After sleep reaches standby mode
After a while in sleep mode, must visit panel “must visit panel”. Works like hibernate mode on Windows PC. The Mac will save the contents of its memory to disk to save additional power, but it will take longer to resume from standby than to wake up.
Next, We show you how to customize when your Mac goes to standby.
RELATED: How to select when your Mac hibernates (O “must visit panel”)
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