How does Lark monitor my sleep?

In addition to its silent alarm clock feature, Lark is equipped with a micromotion sleep pattern sensor that is based on actigraphy--the golden standard in sleep research for studying sleep outside of the lab--to record your sleep data and monitor your sleep quality. In the morning, Lark transfers your sleep data to your mobile device and online dashboard so that you can see how well (or poorly) you slept last night.  

For more information on actigraphy, see here.
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