If the battery level of a Sleep Sensor (aka Minihug) is low, or if it stopped tracking your sleep after around 6 months of use, please follow these steps:
- Find the notch in the Sleep Sensor's casing.
Insert the provided opening tool and carefully turn it inside the notch. You may also use a tool with a rounded end or the tip of a pen as a lever.
Swap the CR2032 button cell Make sure the battery's plus sign faces the plus sign on the inside of the casing.
Press the two parts of the Sleep Sensor back together.