The device consisted of a mask worn over the eyes with LEDs positioned over the eyelids that flashed whenever the mask detected that the person had entered REM sleep.
The LEDs flashed whenever the mask detected that the person had entered REM sleep. The device consisted of a mask worn over the eyes with LEDs positioned over the eyelids.
The device consisted of a mask worn over the eyes with LEDs positioned over the eyelids. The LEDs flashed whenever the mask detected that the person had entered REM sleep.
The device consisted of a mask worn over the eyes with LEDs positioned over the eyelids. The LEDs flashed whenever the mask detected that the person had entered REM sleep.