Your iPad has a setting named Auto Lock that puts it to sleep if isn't used for a period of time. This feature is normally for consumer use and because the display is required at various times throughout the day, we recommend turning this feature off. To turn off Auto Lock, follow these steps:
- Access Settings from the home screen.
- Select General from the left navigation.
- Within the general menu, scroll down and select Auto-Lock.
- Select Never.
- Return to home screen.