This is actually a really cool feature. I've never had any interest in an Apple Watch, but this is something I'd be genuinely interested in. Too bad it requires

This is actually a really cool feature. I've never had any interest in an Apple Watch, but this is something I'd be genuinely interested in. Too bad it requires an iPhone largely. I think there are other less time intensive methods outside of a sleep study, but it is nice to simplify it down to just wearing this and finding out!