When you step away from your Mac, knowing the right keyboard shortcuts can save time, conserve energy, and extend your battery life. After spending considerable time researching, I discovered these essential shortcuts that every Mac user should know.
The Two Types of Sleep
Your Mac offers two different sleep options, each suited for different situations:
Put Mac to Sleep Immediately
Cmd + Opt + Eject
This shortcut puts your entire system to sleep—the display turns off, the hard drive spins down, and all processes pause. It's the equivalent of selecting "Sleep" from the Apple menu, but much faster.
Put Display to Sleep
Ctrl + Shift + Eject
This shortcut only turns off your display while keeping your Mac running. All your applications continue working in the background, downloads keep progressing, and system processes continue uninterrupted.
When to Use Each Shortcut
Display Sleep is ideal when:
- You're downloading large files and need to step away
- Running long processes like video rendering or backups
- Stepping away briefly but want instant access when you return
- Giving a presentation and need to temporarily hide your screen
- Saving energy during the day without interrupting your workflow
System Sleep is better when:
- Stepping away for extended periods (lunch break, end of day)
- Conserving battery on a MacBook
- You won't need the computer for a while
- Traveling with your laptop
- You want maximum energy savings
Waking Your Mac
Waking your Mac is simple:
- From system sleep: Press any key, click the mouse, or open the lid (on MacBooks)
- From display sleep: Move the mouse or press any key
Energy Saver Settings
You can configure automatic sleep behavior in System Preferences > Energy Saver. This lets you set how long the Mac should wait before automatically sleeping when idle, which complements these manual shortcuts nicely.
Quick Reference
- System Sleep:
Cmd + Opt + Eject - Display Sleep:
Ctrl + Shift + Eject
These shortcuts work on all Macs with an Eject key (iMacs, MacBooks with optical drives, and desktop keyboards with dedicated Eject keys). Master these two shortcuts and you'll save time every single day.
