Leesol's Sleepisol Plus earns NSF SleepMark first for a Korean sleep device
Leesol said its Sleepisol Plus wearable headband has received the National Sleep Foundation's SleepMark designation, making it the first sleep device developed in South Korea to win the mark. The company is using the recognition to build credibility at home and push expansion into Japan and the U.S.
Why it matters: - SleepMark is a consumer trust signal tied to quality, credibility and sleep-health principles. - The designation gives Leesol a stronger sales and marketing tool as it tries to grow beyond South Korea. - The recognition could help the company compete in global sleep-tech markets where clinical credibility matters.
What happened: - Leesol said Sleepisol Plus received the SleepMark designation from the National Sleep Foundation on Aug. 25, 2026. - Sleepisol Plus became the first sleep device developed in South Korea to earn the designation. - Julie Yoon, vice president at Leesol, said the recognition validates the company’s technology and supports international expansion.
The details: - The National Sleep Foundation awards SleepMark after a rigorous evaluation process. - The designation is used to identify products aligned with healthy sleep principles. - Sleepisol Plus is a wearable headband designed to improve sleep quality through gentle microcurrent stimulation to the prefrontal cortex. - The device is non-invasive and uses neurostimulation technology. - Leesol said Sleepisol Plus has sold more than 50,000 units in South Korea. - The company described the sales performance as evidence of consumer trust and market acceptance.
Between the lines: - The SleepMark label can help Leesol turn a product milestone into a broader credibility story. - The company is positioning Sleepisol Plus as both a consumer device and a science-based wellness product. - The move signals that Leesol wants to use third-party validation to reduce friction in overseas markets.
What's next: - Leesol plans to start global expansion in Japan. - The company will increase marketing and pursue strategic distribution partnerships there. - Leesol is also preparing to accelerate entry into the U.S. market. - The company expects the SleepMark designation to support that push. - Leesol said it will continue developing Sleepisol Plus and other sleep-health products through wearable tech, neuroscience and AI-powered sleep analytics.
The bottom line: - Sleepisol Plus now has a third-party stamp of approval that Leesol can use to push into larger international markets.
Disclaimer: This article was produced by AGP Wire with the assistance of artificial intelligence based on original source content and has been refined to improve clarity, structure, and readability. This content is provided on an “as is” basis. While care has been taken in its preparation, it may contain inaccuracies or omissions, and readers should consult the original source and independently verify key information where appropriate. This content is for informational purposes only and does not constitute legal, financial, investment, or other professional advice.
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