Family doctor Wei-Shin Lai was happy to be available to patients during the evenings, but she had trouble falling back asleep after responding to late calls. When the headphones on the market proved to be too bulky to wear in bed, Dr. Lai developed a set that would allow her to listen to lulling music and rhythms throughout the night. The device features two thin speakers sewn into a stretchy polyester fleece headband that fits snuggly around the sleeper's head. With each purchase, the Bellefonte, Pa. company also includes a CD of specialized tracks meant to gently induce or interrupt one's sleep cycle.
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