![yan on X: "here's sleep cycle (accelerometer only, phone on bed) vs autosleep using an apple watch. surprisingly, sleep cycle is better at detecting when i actually fell asleep (around 1 not yan on X: "here's sleep cycle (accelerometer only, phone on bed) vs autosleep using an apple watch. surprisingly, sleep cycle is better at detecting when i actually fell asleep (around 1 not](https://pbs.twimg.com/media/D30mwpIUEAAsfen.jpg)
yan on X: "here's sleep cycle (accelerometer only, phone on bed) vs autosleep using an apple watch. surprisingly, sleep cycle is better at detecting when i actually fell asleep (around 1 not
How does the SleepCycle iPhone app work? It seems like it might just be measuring duration of sleep and fudging in the blanks. Is it worth trying? - Quora
![Sensors | Free Full-Text | About the Accuracy and Problems of Consumer Devices in the Assessment of Sleep Sensors | Free Full-Text | About the Accuracy and Problems of Consumer Devices in the Assessment of Sleep](https://pub.mdpi-res.com/sensors/sensors-19-04160/article_deploy/html/images/sensors-19-04160-g001.png?1571164373)