This app is part of an MIT research project studying if we can improve deep sleep with gentle sounds and vibrations in sleep (slow wave entrainment). You can try the technique that we've been developing on your own device, or use the app to run studies with research participants.
For more information on the app and how it works, see https://www.media.mit.edu/projects/sleep-entrainment/overview/
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Experiment from MIT on improving deep sleep with rhythmic sounds and vibrations