Electronic apparatus related to sleep, namely, personal electroencephalography (EEG) headsets not for medical use; downloadable mobile applications related to sleep, namely, for use in sleep therapy, sleep training, visualizing brainwaves, enhancing sleep brainwaves, and to track sleep; downloadable software related to sleep, namely, for use in sleep therapy, sleep training, visualizing brainwaves, enhancing sleep brainwaves, and to track sleep