Change sleep/dim display settings for MacBook
Please follow these instructions to alter the sleep/dim display settings on a MacBook
1. Click the Apple in the upper right corner and select "System Preferences."
2. Click "Energy Saver.”
3. Drag the “Display sleep” slider to your desired amount of time.
4. Close System Preferences.
NOTE: Notice there is both a Battery and a Power Adapter option. You will want to alter both, depending on how you use your Mac. I do not recommend moving the slider to "never" on battery mode.