[jibreel]

How can you measure sleep quality ?

[dingo_bat]

I think the iwatch has a function that tracks your movements during sleep and can make some kind of qualitative assessment.

[paulcole]

If the watch tells you you’re sleeping bad do you think it makes you feel worse physically? There should be an app that measures your physical reaction to checking the sleep quality app.

[jghn]

It seems to be measuring movement and heart rate

[emodendroket]

How tired you are the next day, perhaps.