Powering On - Press Once on Power Button located on the bottom of the Ceramic Mug.
Powering Off - Press and Hold 3 Seconds until the light dims to off. *Note: to make sure the mug is off you can pick up with mug to move it and see if the white light shows up, if it does try to power it off again.
Sleep Mode - Once you turn on Ember, you dont need to again. Ember will go to sleep when its empty, and will wake up as soon as you pick it up.