[News][Esquire] Can 'Insomnia, the Epidemic of Developed Nations,' Truly Be Conquered by Technological Advances?
11 Jun 2026
LEESOL's headband 'sleepisol Light,' which induces deep sleep by flowing microcurrents through the skull, also won an Innovation Award at CES 2025. Among them, sleepisol is a product with a concept that sounds the most unfamiliar. However, according to Ji-soo Lee, Head of Division at LEESOL, it actually utilizes a fairly long-standing technology. "There is a technology called CES (Cranial Electrotherapy Stimulation) developed by a company named Alpha-Stim in 1979. It is a concept that relieves anxiety, insomnia, and pain by applying microcurrent stimulation to the skull. Based on that technology, we have added entrainment technology to create a home product specialized for the sleep field." Entrainment technology is a technique that induces changes in brainwaves to match the desirable states for sleeping, working, and daily activities respectively.
LEESOL's headband 'sleepisol Light,' which induces deep sleep by flowing microcurrents through the skull, also won an Innovation Award at CES 2025. Among them, sleepisol is a product with a concept that sounds the most unfamiliar. However, according to Ji-soo Lee, Head of Division at LEESOL, it actually utilizes a fairly long-standing technology. "There is a technology called CES (Cranial Electrotherapy Stimulation) developed by a company named Alpha-Stim in 1979. It is a concept that relieves anxiety, insomnia, and pain by applying microcurrent stimulation to the skull. Based on that technology, we have added entrainment technology to create a home product specialized for the sleep field." Entrainment technology is a technique that induces changes in brainwaves to match the desirable states for sleeping, working, and daily activities respectively.
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