Sleep tracking no where near accurate?

And here’s stress which shows I’m not stressed either 

Many people have issues with sleep tracking, but you will not get any help here. Similar question was asked many times without solution. 

Contact Garmin support and ask them, but they will not be able to help you either because implemented sleep tracking algorithm is not able detect sleep correctly in some scenarios, such as irregular sleep times as in your case.

I previously had a Fitbit Ionic, the wife a Charge 5, both were far better at measuring sleep than either of our current Garmins

Obviously if Fitbit can do it, it can be done, I just assume Garmin are ok with the poor algorithm they have, as it seems most are OK with it, even though a significant minority are not. The Naps option is a joke, you have to manually add in any you have

Thankfully Garmin are, for the most part, better than Fitbit in just about everything else, so I'll have to continue to put up with the lousy sleep measurements

like this : 

The reality is sleep tracking is just a proxy, it's more of a demanded feature than a scientific based programme. DCrainmaker often mentions the failings of all brands sleep tracking features, confirming the fact that the 'gold standard;' sleep tracking (i.e. a proper sleep study in a lab) is scientifically accepted as being about 80% accurate at best, and all watches come nowhere near as good as that. The best/most accurate feature of these is the time to sleep and time to wake times, buts thats mostly because it's measuring your respirations rather than phases. dont get hung up on it, its not accurate.

5164992 said:

wake up soon after 1

5164992 said:

I managed some online shopping, went to the toilet yet

This : 

RobertSterling said:

The reality is sleep tracking is just a proxy, it's more of a demanded feature than a scientific based programme.

This is Garmin's firstbeat science behind it : 

A Sleep Analysis Method Based on Heart Rate Variability

https://assets.firstbeat.com/firstbeat/uploads/2019/11/A-Sleep-Analysis-Method-Based-on-Heart-Rate-Variability-071119-1.pdf 

You had a lot of REM sleep, which explains this.

..“

REM (25%)

EEG recording: beta waves - similar to brain waves during wakefulness

REM is associated with dreaming and is not considered a restful sleep stage.

While the EEG is similar to an awake individual, the skeletal muscles are atonic and without movement, except for the eyes and diaphragmatic muscles, which remain active. However, the breathing rate is more erratic and irregular. This stage usually starts 90 minutes after the sleep state, with each REM cycle increasing throughout the night. The first cycle typically lasts 10 minutes, with the final cycle lasting up to 1 hour.[21] REM is when dreaming, nightmares, and penile/clitoral tumescence occur.  

Important characteristics of REM:

• Associated with dreaming and irregular muscle movements as well as rapid movements of the eyes

• People tend to awaken spontaneously in the morning during an episode of REM sleep
• Loss of motor tone, increased brain O₂ use, increased and variable pulse and blood pressure
• Increased levels of ACh
• The brain is highly active throughout REM sleep, increasing brain metabolism by up to 20%[22]“…

https://www.ncbi.nlm.nih.gov/books/NBK526132/ 

I am aware, but most trackers at least get sleep and wake-up times correct, Garmin cant even do that.