GoodNite - A Portable Sleep Stage Monitor
Sleep quality is central to the quality of life. GoodNite is designed to help you analyze your sleep and improve it. It’s composed of a lightweight wireless headband and a bedside display.
Compared with the existing sleep stagers, GoodNite combines frontal EEG and head motion information to ensure high staging accuracy without sacrifice of the portability.
GoodNite can visualize your sleep with personalized sleep graphs and, via the monitor of your sleep stages, more functions are available including a wise alarm waking you up at the most appropriate time, pseudo-sunlight simulating sunrise and sleep-assisting music fading as you fall asleep.
Background and Related Commercial Products
System Overview
Hardware Diagram and PCB Photo
Algorithm
Headband Design - Dry Electrodes
Woven electrodes made of conductive fabric are attached to a cohesive silicone headband, which takes the place of uncomfortable elastic bands. (After the PCB is also attached to the silicone headband, the cables in the photos above will be replaced by wireless communication).
Example of Sleep Staging Results