This app was removed from the App Store.
Mac OS Developer Tools
Stay Awake can be used to prevent your Mac from sleeping, even if you close the lid of your MacBook. Note: Sleep prevention while the lid is closed only works if your MacBook is connected to AC power.
- Prevent the display from sleeping.
- Prevent the system from sleeping, even if you close the lid of your MacBook.
- Prevent only if the Mac is running from AC power.
- Added explanation that the MacBook must be connected to AC power in order for sleep prevention while the lid is closed to work.