10K+
Downloads
Content rating
Everyone
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About this app

Write a sleep diary and improve your sleep habits!

The "Sleep Diary" helps you find better sleep habits based on cognitive behavioral therapy (CBT-I), which is attracting attention as a treatment for insomnia. Under the guidance and cooperation of insomnia treatment specialists, we provide three support functions to record and review your daily sleep status while acquiring correct knowledge about sleep, making it easy for anyone to use.

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◆Support 1 [Record] ~Visualize your sleep status~

You can easily record your daily sleep status and visualize your condition in easy-to-understand graphs.

To get better sleep, it is important to correctly understand your sleep status. By continuously recording and reviewing your sleep status, you can gain awareness of your sleep rhythm, etc.

◆Support 2 [Learning] ~Provide correct knowledge about sleep~

We provide correct knowledge about sleep compiled by sleep experts based on medical evidence as "tips for good sleep".

By combining the insights gained from "recording" with the correct knowledge gained from "studying," you can find better sleeping habits.

◆Support 3 [Check] ~Measure your sleep state~

You can check your "humin index" by simply answering a simple questionnaire.

Researchers have proven that this questionnaire is highly reliable and valid as a measure of sleep state, and by checking it regularly once every two weeks to once a month, you can feel the changes in your sleep state.

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[Notice of recommended environment]
"Sleep Diary" can be operated in the following environment.
- Android OS 7.0 or higher

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Updated on
Nov 13, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Health and fitness and Device or other IDs
This app may collect these data types
Personal info, Health and fitness and 2 others
Data is encrypted in transit
You can request that data be deleted

What’s new

バージョン7.1.1での変更点
・一部ユーザビリティを向上しました。
・その他軽微な修正を行いました。

App support

About the developer
NEC SOLUTION INNOVATORS, LTD.
nes-googleplay-support@nes.jp.nec.com
1-18-7, SHINKIBA NEC SOLUTION INNOVATORS HONSHA BLDG. KOTO-KU, 東京都 136-8627 Japan
+81 80-2959-5682