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How does an app predict your sleep cycle? Do you have the keep phone on you?
by exhilaration 9y ago
How does an app predict your sleep cycle? Do you have the keep phone on you?
- magic_beans 9y agoIt tracks your sound or movement (either via the microphone or the accelerometer) as you sleep to determine your sleep cycles. You set a baseline of typical sleep for 5 days, and after that the app can predict when to wake you up.