The founders say thatSleep Shepherd is unlike any other sleep aid on the market as it utilizes real time data in an innovative biofeedback loop to help the wearer naturally fall asleep without having to make use of habit-forming drugs. The gadget doesn’t interfere with the chemical balance of the brain, and can be worn as often as needed without the negative side effects of pharmaceutical approaches. Specialized nerves hard-wired in the part of our brain stem called the medial superior olive (MSO) get excited when they are stimulated by signals arriving from our two ears. The rhythmic pulse you ‘hear’ when wearing the Sleep Shepherd is actually your brain deciphering the difference in frequency between the two tones that are played into either ear. This natural ability, contained within our brain’s structure, creates a soothing sensation of swaying back and forth as though the wearer is in a hammock. Currently, the gadget is seeking crowdfunding, but it is set to debut at the Consumer Electronics Show (CES) in Las Vegas this January. Have a look at the the presentation video from below or go ahead and buy it for just $119. If you miss that price, then you will be able to get it for $139.