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I know nothing about Apple Watches but I know my sleep quality has plummeted recently. Does the watch just accurately track time asleep, and then you tried improving that number via various different thing? Or does it do anything more clever to help you fix your sleep?

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That's correct. The built-in functionality is relatively primitive, but it's been enough for me so far. I do know people who use the Apple Watch with more advanced third-party apps but haven't had the need yet.

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