If you want sleep tracking, you can use Muse S [0]. You can stream EEG readings in real-time using [1]. However it's really, really hard to get _useful_ data a

If you want sleep tracking, you can use Muse S [0]. You can stream EEG readings in real-time using [1]. However it's really, really hard to get _useful_ data about one's sleep. The results computed by Muse are garbage. The only successful product I know is Dreem [2] but they've exited the consumer market. At the moment, I think the easiest way is to get an ECG (yep, for the heart, not the head) and process the readings using z3score-hrv [3]. [0]: https://choosemuse.com/muse-s/ https://choosemuse.com/muse-s/ [1]: https://github.com/alexandrebarachant/muse-lsl https://github.com/alexandrebarachant/muse-lsl [2]: https://dreem.com/ https://dreem.com/ [3]: https://medium.com/neurobit-technologies/clinical-grade-sleep-tracking-using-z3score-hrv-api-246b2c8a70e9 https://medium.com/neurobit-technologies/clinical-grade-slee...