The audio signals create a reaction that the Founder calls the “virtual hammock effect.” The hat emits precise tones into your ears that mimic a sound swaying back and forth. As your brain deciphers the difference in frequency coming from either ear, this creates the effect of a slow rhythm. Your brain starts to follow that and slows down, and the Sleep Shepherd automatically adjusts the individual tones using a biofeedback loop.
Throughout the night, if you wake up or your brain starts ramping up again, the Sleep Shepherd responds. It reintroduces the tone to slow down your mind and keep you snoozing.
Sleep is a subject that kept Founder Dr. Michael Larson, Ph. D from MIT, awake from time to time. His daughter suffers from narcolepsy, and her prescription drugs often kept her awake for hours. He wanted a drug-free way to help her fall asleep.
The Sleep Shepherd is made with lightweight, breathable fabric that’s audio-conductive. That means no earphones or buds to plug into your ears, and you won’t get too hot wearing it. Admittedly, it’s not something you’d wear in public, but hey, you look kind of silly when you are sound asleep, too. Which you will be.