EEG equipped headphones

My S.O. and many other people like to listen to music or audio-books in bed before going to sleep. The problem is you are very likely to fall asleep midway through your playlist or story. Current audio players can only take rough guesses as to when you stopped listening and the next morning you have to scroll backwards to the last bit you remember.

This product consists of ordinary headphones, either wired or bluetooth, paired with a headnet fitted with contact electrodes and the electroencephalograph app on your media player. Simply don the headnet and earphones when in bed and start your audio-book or music. When the system detects you've passed a certain threshold of theta waves to alpha waves it gently lowers the volume and shuts down. This threshold point is adjustable to your individual preference to most accurately conform with your ability to recall where you left off.