HITSUJI

For those seeking their ideal sleep rhythm. SomniLab uses Chronotype analysis and AI to perfectly sync your lifestyle and optimize your days.

Main Features of HITSUJI

・Chronotype Assessment: Understand your natural sleep tendency and find a realistic bedtime and wake-up rhythm that fits you ・Simple Sleep Logging: Easily record your bedtime, wake-up time, and sleep quality. Keep tracking your daily sleep without complicated steps ・Automatic Sleep Debt and SJL Analysis: Automatically calculates key indicators such as sleep debt and Social Jetlag (SJL) to help you understand your sleep rhythm ・Easy-to-Read Graphs: Check your sleep patterns by day, week, or month. Changes in bedtime and wake-up time are easy to understand at a glance ・Original Sleep Score: View your sleep condition as a score and see changes in your current state and improvement progress. You can also understand the reasons behind your score ・AI Advice: AI supports your sleep concerns and improvement points based on your recorded sleep data. It also suggests one simple point to focus on today

Recommended For

・People who want to improve sleep quality and support better daytime performance ・People who want to understand their chronotype and build a sustainable daily rhythm ・People who want to easily check sleep debt, SJL, and other sleep indicators ・People who want to understand the reasons behind their sleep score and what to improve ・People who want to continue sleep tracking and analysis without complicated steps

HITSUJI is an app that helps you understand your body clock and build better sleep habits. Through logging, analysis, visualization, and AI advice, HITSUJI supports your sleep improvement.

With HITSUJI Premium, you can remove ads and unlock enhanced AI features, including a higher AI chat usage limit, one-line advice, detailed sleep score explanations, and weekly/monthly AI sleep reports.