Dr. Michael Grandner

The wearable data can fall under that and you're totally fine.

Like up to maybe an hour even under that and you should be totally fine.

So that's, I trust it to be correct and accurate for what it is, but it doesn't mean it's measuring the same thing.

And so I expect it to be a little different.

So that's, and that is what the, what it's best at.

The heart rate data are also really good separate world in that the heart, you know, photoplethysmography for getting heart rate data, that science is really well developed.

And, you know, you can get really good heart rate data with pretty good resolution from the wrist.

And for even from the finger, you can get pretty good heart rate data.

So, so yeah, in terms of the other stuff, there's, there's sort of two levels of other stuff.

One is the sleep staging data.

And the other one is other metrics like recovery or readiness or sleep score and all that sort of stuff.

The sleep staging data, it's a ballpark.

It's actually better than a lot of sleep people assume that it is in terms of its level.

It's probably between 60 and 80% accurate.

So it's not nothing.

It's also not perfect, but it's also not garbage.

Like it's, it's helpful.

It's, it's probably ballpark correct.

Um, kind of remember what sleep stages are.

We were looking at different patterns of brainwave activity.