Firstbeat: Sleep Quality Assessment - nice to have

Garmin appear to be quite keen on continuing the development of their own sleep tracking technology, so I doubt we'll see them switch to this licensed FirstBeat metric unless there's a significant market demand which they're unable to meet with their own dev.

I do agree with you though in that I'd love to be able to use this metric.

yes I could I could sell my oura ring

This would be nice.

Of course the more firstbeat algorithms the better :) 

But on the other hand, if I understand the metric correctly it's just the same as body battery.

Doesn't body battery do what you need?

Nope, it is definetely not the same as Body Battery as it is aiming in a different way: while Body Battery is an all-day stress accumulator which can also recharge without sleep, the Sleep Quality metric focuses on how well you actually slept, basically interpreting what you can see in the  sleep function inside Garmin Connect, but also quantitizing it to a number from 1 to 100.

That is something Body Battery cannot provide: if you had a very relaxing day, your Body Battery score will already be quite high when you go to bed and during sleep it will generally fully recharge, even if your sleep was not perfect but just average.

And Sleep Quality Assessment would exactly tell you that: it starts its assessment when you start to sleep and stops it when you awake, so that's the score only measured during your sleeping time.

If body battery says you're fully loaded, what does it matter if the sleep was 70 or 90?

How would you use that figure and what benefits would it give you over body battery?

Because Body Battery is not exact enough to tell you if your sleep was good enough to do a really tough workout today or better try something less stressful. This mainly depends on how well you recovered over night and how your sleep affected your training performance on the next day. This is something that Body Battery does not provide, it just tells you in a very general way how much stress you have had over the last hours and when it is time to take a little rest. But it is virtually useless just after waking up to decide if this is a tough training day or not.

HUMODDA said:

This is something that Body Battery does not provide, it just tells you in a very general way how much stress you have had over the last hours and when it is time to take a little rest.

Very true. A little while back, I had a bad case of heartburn that kept me up tossing and turning all night long. I may have gotten 3 1/2 hours sleep. In the morning I just laid on the couch and watched TV. Because I was just lying around, that afternoon Body Battery gave me nearly a full charge even though I felt like crap from lack of sleep. 

That would be helpful to have - agreed.