Set sleep and wake settings for your Mac
You can set your Mac to go to sleep after a specified duration of inactivity. You can also set your Mac to go to sleep and wake up at a specific time.
Note: Some of the options may not be available, depending on your Mac.
Specify sleep and wake settings for a Mac desktop computer
On your Mac, choose Apple menu
Do any of the following:
Set your Mac to go to sleep and wake up at a specific time: Click Schedule in the bottom-right corner, then select the options you want to use.
Set the amount of time your computer or display should wait before going to sleep: Drag the “Computer sleep” and “Display sleep” sliders.
Keep your Mac from going to sleep automatically: Select “Prevent computer from sleeping automatically when the display is off.”
Put hard disks to sleep: Select “Put hard disks to sleep when possible.”
Keep your Mac turned on whenever power is available: Select “Start up automatically after a power failure.”
Update your system while it’s asleep: Select “Enable Power Nap.”
Allow your Mac to wake briefly so users can access shared services (if applicable): Select any of the available “Wake for…” options, such as “Wake for network access.”
Specify sleep and wake settings for a Mac notebook
On your Mac, choose Apple menu
Do any of the following:
Set your Mac to go to sleep and wake up at a specific time: Click Schedule, then select the options you want to use.
Switch between graphics modes: Click Battery or Power Adapter, then select “Automatic graphics switching” to switch between graphics modes automatically for better battery life.
Set sleep times for when you’re using your Mac notebook’s battery: Click Battery, then drag the “Turn display off after” slider.
Set sleep times for when you’re using your Mac notebook’s power adapter: Click Power Adapter, then drag the “Turn display off after” slider.
Keep your Mac from going to sleep automatically: Click Power Adapter, then select “Prevent computer from sleeping automatically when the display is off.”
Put hard disks to sleep: Click Battery or Power Adapter, then select “Put hard disks to sleep when possible.”
Keep your display dimmed while using your battery: Click Battery, then select “Slightly dim the display while on battery power.”
Update your system while it’s asleep: Click Battery, then select “Enable Power Nap while on battery power.” Click Power Adapter, then select “Enable Power Nap while plugged in to a power adapter.”
Allow your Mac to wake briefly so users can access shared services (if applicable): Click Power Adapter, then select any of the available “Wake for…” options, such as “Wake for network access.”