Sleep Sensor Software Issues

[userVRiF8HC76s]

Update 5/18/26

Past 3 days. One night showed reasonable data. I've included the day before the reasonable data and the day after. This is extremely frustrating. 

I have a Galaxy Watch 7 (2025) Ultra. Sleep tracking is awful. All the garbage about fit, wear, or cleaning do not apply. Every now and then I "might" get a good reading, rarely. Most often I'm getting awake for 6 hours or so. I fall asleep and wake up in the position I fell asleep in. I KNOW, I sleep. What gives? Last year, I was getting good sleep results. After a software update, I started having issues. 

Just an example of bad data collection. I do show some movement but not over 6½ hours of being awake.

Previous night before the more accurate data. Again, no movement or periods of awakening. 

Night before: Good data, even my movement corresponds with the data. I did get up for a restroom break.

Last night's data. Notice no movement corresponding with the periods of awakening the watch claims I'm experiencing. 

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I know others have this issue. I just can't trust Samsung. 

[usermH0lcVT2IY]

I had a Galaxy watch 6 and after a year it started to not record when I went to sleep, starting my sleep 1-3 hours later than it actually was. I upgraded to an Ultra 2025 and for the first few months the sleep recording was correct. Now the ultra is doing the same thing. Last night it missed the first three hours of my sleep, ruining my sleep score and energy score. I also have a Whoop band, which I wanted to discard but cannot because it does accurately measure my sleep. Is there anything that can be done to fix this?

[userVRiF8HC76s]

I still continue with this issue. But, Samsung KNOWS about the problem and there is a work around. This month is a new update that should fix this issue. My watch worked great the first few months until I received an update and it's never been right since. Maybe they will get it fixed, but I'm pretty mad they have been sitting on the fix. Not sure I'll trust it enough to purchase another.

[userVRiF8HC76s]

Sleep Track Issue Resolved 🙏
Last night before bed I was setting my watch display to AoD. But, I get a notice of July's update to install. I did & fully charged my watch.
This morning when reviewing my sleep tracking my score had increased from 14 to 82 over two days. Hopefully, this issue was corrected. I'll try tonight without setting the AoD (always on display).