LifeTrak Zone C410 - Manual (Page 12)

Our advanced sleep tracker is smart enough to distinguish
if the device is on or off your wrist. Sleep tracking is
disabled when the device is not on your wrist.
Total sleep time is accumulated during all sleep sessions
that end on a particular day. For example, if you fell asleep
last night and woke up this morning, your sleep duration will
However, if you fell asleep last night at 10:00 p.m. and
woke up at 11:00 p.m., that hour of sleep would be added
to total sleep time.
NOTE: The total sleep time will update after a brief period
once you wake up.
NOTE: Minimum sleep time for recorded data is
45 minutes.
TRACKER*
*Available only on C410
Total sleep time
10