Sleep detection

When you say everything, what have you tried?

• Have you made sure your watch is not too loose?  It needs to be snug, not tight.
• Do you have your watch positioned correctly on your wrist?  It should be on the top side of your wrist at the narrowest part, just about a finger width above the wrist joint.
• Do you put the watch into sleep mode?  It shouldn't matter, but it does turn off certain actions that might interrupt the sleep tracking (raise wrist to wake, tap to wake)
• Do you have power saving on?  This will prevent many of the health features From working if you did not specifically turn "limit health features" off.  I believe it may be on by default. On the watch or in the Wear app, go to settings/battery/power saving and make sure both power saving and limit health features is off. (or just turn off limit health features if you prefer to keep power saving on).

Here is the response I received from Support for the same issue:
Thank you for your patience while our team reviewed the logs you provided.



Based on the analysis, it appears that the sleep measurement was interrupted due to movement during sleep. The Galaxy Watch determines sleep status using an algorithm that relies on accelerometer data. As a result, movements such as tossing and turning or arm movement during sleep may be interpreted as wakefulness, which can interrupt sleep tracking.



Our technical team has identified that sleep tracking may be overly sensitive to movement in certain situations and is aware of this behavior. Improvements are being considered for future updates.



We apologize for any inconvenience this may have caused and appreciate your understanding.

If you have any further concerns or questions, please let us know. We will be happy to assist you.



Kind regards,

Ruffa

Samsung Health Support Team