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Your all-in-one AI partner for 
a perfect night’s sleep.

Trusted by over 1.5 million users worldwide, sleepisol Bio is in a class of its own. 
As the world's first solution to merge personal biological rhythms — circadian rhythms — 
with cutting-edge AI technology, sleepisol Bio delivers a comprehensive, 
24-hour personalized sleep management experience that works with your body around the clock, day and night.

• Google Play's "Best of 2025" App 
(Awarded in 10 countries globally)

• Surpassed 1.5 million global users shortly after launch 

Your all-in-one
AI partner for a perfect night’s sleep.

Trusted by over 1.5 million users worldwide, sleepisol Bio is in a class of its own. As the world's first solution to merge personal biological rhythms — circadian rhythms — with cutting-edge AI technology, sleepisol Bio delivers a comprehensive, 24-hour personalized sleep management experience that works with your body around the clock, day and night.

• Google Play's "Best of 2025" App 
(Awarded in 10 countries globally)

• Surpassed 1.5 million global users shortly  
after launch 

AI-Powered Wellness 
Scheduling via Sleep Diary


No complicated setup. No guesswork. Just write your sleep diary, 
and let sleepisol Bio do the rest. Our AI comprehensively analyzes 
your personal records and biometric data to automatically build a 
fully personalized wellness schedule — from your ideal wake-up time 
and daytime therapy sessions to your pre-sleep bedtime routine — 
crafting the perfect rhythm for your day, every day.

AI-Powered Wellness Scheduling via Sleep Diary


No complicated setup. No guesswork. Just write your sleep diary, and let sleepisol Bio do the rest. Our AI comprehensively analyzes your personal records and biometric data to automatically build a fully personalized wellness schedule — from your ideal wake-up time and daytime therapy sessions to your pre-sleep bedtime routine — crafting the perfect rhythm for your day, every day.

Custom Sound Care Based on Your Circadian Rhythm


sleepisol Bio delivers personalized care precisely when your body needs it most — perfectly aligned with your unique biological rhythms. Through premium, scientifically designed soundscapes engineered to regulate brainwave activity, sleepisol Bio provides focused, targeted management across four key modes.

Sleep Mode Induces deep, restful sleep.
Focus Mode Boosts daytime concentration and performance.
Stress Mode Provides daily relaxation and stress relief.
Healing Mode Promotes mental and physical recovery.

Ultra-Precise AI Analysis with Wearable Integration


sleepisol Bio seamlessly connects with leading wearable devices — including Samsung Galaxy Watch and Apple Watch — to analyze your Heart Rate Variability (HRV) data in real time. But it goes far beyond simple tracking. By conducting an in-depth evaluation of snoring duration, sleep patterns, and daily lifestyle habits, sleepisol Bio generates a precise sleep score alongside a comprehensive root cause analysis report — giving you the clarity to understand not just how you slept, but why.

Sleep Gamification
for Habit Building


sleepisol Bio goes beyond simple logging and scheduling — it drives genuine, lasting behavioral transformation. With personalized daily missions, sleep habit tracking, and intuitive progress indicators, every step forward is visible and rewarding. Users feel a real sense of achievement each day, building the motivation and momentum needed to actively take ownership of their sleep health and make meaningful, lasting improvements.

Ever-Evolving
Total Mental Care

sleepisol Bio is on a mission to build technology that truly empathizes with human emotion and offers genuine comfort when it matters most.

Powered by the latest generative AI, sleepisol Bio introduces a new dimension of personalized care — featuring real-time wake-up narrations that reflect your emotional state, auto-generated meditation and sleep stories crafted just for you, and intelligent AI self-diagnosis reports that translate your data into meaningful, actionable insights.

Custom Sound Care 
Based on Your Circadian Rhythm


sleepisol Bio delivers personalized care precisely when your body 
needs it most — perfectly aligned with your unique biological rhythms. 
Through premium, scientifically designed soundscapes engineered to 
regulate brainwave activity, sleepisol Bio provides focused, 
targeted management across four key modes.

Sleep Mode  Induces deep, restful sleep.
Focus Mode  Boosts daytime concentration and performance.
Stress Mode  Provides daily relaxation and stress relief.
Healing Mode  Promotes mental and physical recovery.

Ultra-Precise AI Analysis with Wearable Integration


sleepisol Bio seamlessly connects with leading wearable devices — 
including Samsung Galaxy Watch and Apple Watch — 
to analyze your Heart Rate Variability (HRV) data in real time. 
But it goes far beyond simple tracking. By conducting an in-depth evaluation 
of snoring duration, sleep patterns, and daily lifestyle habits, 
sleepisol Bio generates a precise sleep score alongside a 
comprehensive root cause analysis report — giving you the clarity 
to understand not just how you slept, but why.

Sleep Gamification 
for Habit Building


sleepisol Bio goes beyond simple logging and scheduling — 
it drives genuine, lasting behavioral transformation. 
With personalized daily missions, sleep habit tracking, 
and intuitive progress indicators, every step forward is visible 
and rewarding. Users feel a real sense of achievement each day, 
building the motivation and momentum needed to actively take 
ownership of their sleep health and make meaningful, lasting improvements.

Ever-Evolving Total Mental Care

sleepisol Bio is on a mission to build technology that truly empathizes 
with human emotion and offers genuine comfort when it matters most. 

Powered by the latest generative AI, sleepisol Bio introduces a new dimension of personalized care — 
featuring real-time wake-up narrations that reflect your emotional state, 
auto-generated meditation and sleep stories crafted just for you, 
and intelligent AI self-diagnosis reports that translate your data into meaningful, actionable insights.

Address
Seoul Office

9th floor, 310, Bongeunsa-ro, Gangnam-gu, Seoul

Busan Office

24th floor, 7-8, Jungang-daero 214beon-gil, Dong-gu, Busan

Contact us
+82-02-318-8890
Opening Hours :
Monday - Friday 09:00 AM - 06:00 PM(KST)
Email
info@leesolbrain.com
Socials
 sleepisol

 

© 2026 LEESOL. All Rights Reserved

Address
Seoul Office

9th floor, 310, Bongeunsa-ro, Gangnam-gu, Seoul

Busan Office

24th floor, 7-8, Jungang-daero 214beon-gil, Dong-gu, Busan

Contact Us
+82-02-318-8890

Opening Hours :
Monday - Friday 09:00 AM - 06:00 PM(KST)

Email

info@leesolbrain.com

Socials
 sleepisol 

© 2026 LEESOL. All Rights Reserved