About two thirds of Americans suffer from insomnia these days. Not only the sleeping time matters, but also the quality of sleep does. Brid.zzz directly monitors brainwaves through its EEG sensor to determine which sleep stage the user is in. Many people use smart watches’ sleep mode but Brid.zzz is much more accurate than a standard smart watch, which only has a function of analyze sleep stages based on motion recognition. Applying the Best Sleep Stages by using Binaural Beats Different people have different sleep cycles, and we don’t know which sleep-stage a person needs. Brid.zzz can analyze a user’s…