About Us

"Kkuljam Doctor"

Sleepkeeper

Awards & History

Fundraising Status

Skills

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For a world where everyone sleeps well

A world where
everyone sleeps well

Don't dismiss sleepless nights
as "just fine"

Don't dismiss sleepless nights
as "just fine"

Professor Shin Won-chul, a sleep specialist with 25 years of experience,
provides practical, effective sleep solutions
tested and proven through treating thousands of patients.

Professor Shin Won-chul, a sleep specialist with 25 years of experience,
provides proven, practical sleep solutions
developed while treating thousands of patients.

Shin Won-chul

Shin Won-chul

Professor of Neurology at Kyung Hee University Hospital at Gangdong

Professor of Neurology at Kyung Hee University Hospital at Gangdong

• Director of Sleep Center, Kyung Hee University Hospital at Gangdong

• Vice Director of Institute of Medical Science and Civilization, Kyung Hee University Medical Center

• President of the Korean Sleep Research Society

• Director of Pharmacotherapy, Korean Epilepsy Society

• Executive Director of the Korean Epilepsy Association

Without relying solely on medication,

Without relying solely on medication,

Daily Routines

Daily Routines

By just changing

By just changing

Restorative sleep for everyone

Restorative sleep for everyone

the fact that you can sleep well

the fact that you can sleep well

Many people are already experiencing this!

Many people are already experiencing this!

Highly recommended for these people

Highly recommended for these people

I want to create
healthy sleep habits

Those who know the importance of sleep all too well,
but find it not as easy to sleep soundly as they would like

I want to build
healthy sleep habits

Those who know the importance of sleep all too well,
but find it not as easy to sleep soundly as they wish

I want to improve my insomnia
without taking sleeping pills

Those who have insomnia or are
considering taking sleeping pills

I want to improve my insomnia
without taking sleeping pills

Those who have insomnia or are
considering taking sleeping pills

As I become a senior,
my sleep time decreases

Wondering why your sleep
gets shorter as you age?

As I get older,
my sleep time decreases

Wondering why your sleep
gets shorter as you age?

Kkuljam Doctor

Kkuljam Doctor

The sleep schedule that best fits my Circadian rhythm right now

The sleep schedule that best fits my Circadian rhythm right now

The app notifies you,
helping you fall asleep and wake up
at your preferred times

The app lets you know,
helping you fall asleep and wake up
at your desired time

"Kkuljam Doctor" is based on smart device lifelog data and sleep diaries

"Kkuljam Doctor" is based on lifelog data from smart devices
and a sleep diary,

Sleep pressure

and

Circadian rhythm

by measuring in real-time,

measure in real time and

An intelligent sleep platform that recommends evidence-based and personalized sleep routines

Intelligent Sleep Platform

It is.

Evidence-based and personalized

Key Feature 1

Sleep Pressure Measurement Algorithm

Sleep Pressure Measurement Algorithm

1

Analyzes the previous day's sleep amount, sleep debt,
activity level, naps, caffeine intake, etc., based on smartphone data

Based on smartphone data,
it analyzes your sleep from the previous night, sleep debt, activity level, naps,
caffeine intake, and more.

2

Calculate real-time sleep pressure score → Recommend optimal bedtime

Real-time sleep pressure score calculation → Suggesting
optimal bedtime timing

3

Provides a sleep drive chart that shows daily fatigue as a numerical value

Showing the day's fatigue in numbers
Providing a sleep drive chart

Key Feature 2

Sleep Improvement Bedtime Routine

Sleep Improvement Bedtime Routine

1

Automatically apply 20 morning and evening routines (meditation, stretching, white noise, etc.)

20 Morning and Evening Routines
(Meditation, stretching, white noise, etc.) automatically applied

2

Adjusting bio-rhythm and
sleep pressure to fit my desired bedtime

Adjusting circadian rhythm and sleep pressure,
to match my desired bedtime

The path that Sleep Forest has walked

The path that Sleep Forest has walked

March 2022

Launch of Sleep Expert YouTube Channel: SLEEP Dr. Shin Won-chul's Good Sleep Tube

Sleep Specialized YouTube Channel
Opened SLEEP Dr. Won-chul Shin Channel

August 2022

Establishment of Sleep Forest Co., Ltd.

Oct 2022

Selected as a resident company of Kyung Hee University Campus Town, winning the Grand Prize

November 2022

Won the Excellence Award at the Hongneung Innopolis Grand-K Startup Competition

March 2023

Start of development for the sleep coaching platform "Kkuljam Doctor"

July (~December) '23

Selected for the Hongneung InnoTown H-Bridge Project

September 2023 (~January 2023)

Selected for the Hongneung Innopolis H-(Reverse) Train Project

Selected for Hongneung Innopolis H-(Reverse) Train
Project

Sep '23 (~Aug '24)

Seoul Business Agency Campus Town Technology Matching Support Program Selection

Seoul Economic Promotion Agency Campus Town Technology Matching
Support Program Selection

August '24 (~December)

Selected for the Gangwon Techno Park Data Startup & Venture Business Foster Project

Gangwon Techno Park Data Startup & Venture Enterprise
Nurturing Project Selection

Oct 2024

Korea Technology and Information Promotion Agency for SMEs TIPS Project Selection

Oct 2024

Acquired Venture Business Certification

Dec 24

Recognition of Corporate Research and Development Institute (Korea Industrial Technology Association)

Dec '24 (~ Feb '25)

Selected for the Precision Medicine Enterprise Support Project

Jan '25

Launch of sleep-specialized commerce platform Kkuljammall

April 2025

Selected for the Early-stage Startup Package by the Ministry of SMEs and Startups

April 2025

Selected for the Local Intellectual Property Center IP Narae Program

April 2025

Selected for the 16th KIBO Venture Camp by the Korea Technology Finance Corporation

April 2025

Selected for the Korea Securities Depository K-Camp Gangwon 5th Accelerating Program

Korea Securities Depository K-Camp Gangwon 5th Batch
Selecting for Accelerating Program

May '25

Received the Outstanding Enterprise Award at the Follow-up Private IR of the HC-VIP (Hongneung-Chuncheon Innopolis Venture Support Platform)

HC-VIP (Hongneung-Chuncheon Gangso Special Zone Venture Support Platform)
Received the Follow-up Private IR Outstanding Enterprise Award

Investment Status

Investment Status

July 2024

Kangwon National University Technology Holding, Douzone Bizon, Gangwon State Startup Fund (Seed Investment)

Kangwon National University Technology Holding, Douzone Bizon, Gangwon State Startup Fund (Seed Investment)

March 2025

Korea Technology Finance Corporation, technology startup certification and funding support

Korea Technology Finance Corporation, technology startup certification and funding support

Sleep Forest Co., Ltd.

Sleep Forest Co., Ltd.

Business Registration Number: 2598602832 | Representative: Wonchul Shin
Representative Phone: 010-2732-0990
Mail-order Business Report Number: 2024-Seoul Dongdaemun-0897 (Check Business Information)
Business Address: 4th Floor, Welfare and Welfare Building, 130 Beodeul 1-gil, Namsan-myeon, Chuncheon-si, Gangwon-do

Business Registration Number: 2598602832 | Representative: Wonchul Shin
Representative Phone: 010-2732-0990
Mail-order Business Report Number: 2024-Seoul Dongdaemun-0897 (Check Business Information)
Business Address: 4th Floor, Welfare and Welfare Building, 130 Beodeul 1-gil, Namsan-myeon, Chuncheon-si, Gangwon-do