Sleep Tracking
While you are sleeping, the watch automatically detects your sleep and monitors your movement during your normal sleep hours. You can set your normal sleep hours in the
Garmin Connect™ app. Sleep statistics include total hours of sleep, sleep stages, sleep movement, and sleep score. Naps are added to your sleep statistics, and can also impact your recovery. You can view detailed sleep statistics in your
Garmin Connect account.
NOTE:
You can use do not disturb mode to turn off notifications and alerts, with the exception of alarms (Using Do Not Disturb Mode).
Using Automated Sleep Tracking
Recording a Nap
- Swipe left or right to view the naps widget.
- Tap the touchscreen.
-
Press
.
-
Select an option:
-
To set a timer for your nap, select
.
-
To take a nap without a timer, select
.
-
Breathing Variations
The optical heart rate sensor on the
Lily 2 Active device has a pulse oximeter feature that can detect any overnight sleep variations of your oxygen saturation percentage to alert you to potential sleep apnea. While measuring your pulse ox (SpO2) during your sleep window, the device indicates if your SpO2 percentage drops by more than 3%, and lasts for longer than 10 seconds. This is referred to as a breathing variation. The device calculates all breathing variations that occur during a one-hour window to give you a severity level based on the
American Academy of Sleep Medicine® criteria for diagnosing sleep apnea.
NOTE:
You must turn on pulse oximeter sleep tracking to detect breathing variations (Turning On Pulse Oximeter Sleep Tracking).
|
Severity Level |
Number of Breathing Variation Events |
|---|---|
|
None |
Less than 5 |
|
Low |
5 to 15 |
|
Medium |
15 to 30 |
|
High |
More than 30 |
NOTE:
You may need to add the glance to your glance loop (Customizing the Widget Loop).
On your Garmin Connect account, you can view additional details about breathing variations, including trends over multiple days. For more information on pulse oximeter accuracy, go to garmin.com/ataccuracy.