My Magic Leap fell asleep, how do I wake it up?

Only short-pressing the power button or connecting a USB cable wakes the device and returns it to the Active state.

 
 If a device in standby reaches the Sleep Timeout defined in the settings, it enters the Sleep state. The default is 10 minutes. From the Sleep state, only tapping the power button or connecting a USB cable wakes the device and returns it to the Active state.
  • Remember: you want to tap the power button and not hold the power button.
  • Tapping the power button (quickly pressing the button without holding down) will wake up the light pack and enable the headset to show a display again.
  • If you hold down the power button it will manually shut down the headset which is not recommended, unless absolutely necessary.  
MagicLeap Identiying buttons 3

Above is a button layout for the MagicLeap 1 headset.