ねむログ~睡眠サイクル記録、いびき、寝言を監視~

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About this app

Record, analyze, and improve your sleep with just your smartphone.

"Nemulog" is a sleep management app that integrates sleep duration, sleep state, and sleep habits into one platform, using only your smartphone. It analyzes data, identifies trends, and offers suggestions for improving your lifestyle. Even without wearable devices, you can start a sleep improvement cycle today with just your smartphone.

■ Recording is simpler
Record bedtime and wake-up times instantly with a long press of a button. Using an accelerometer and microphone, it automatically detects body movements, snoring, and noises to the extent possible. You can also memo your sleeping location, mood, and mood/sleepiness upon waking.

■ Understanding the "Contents of Sleep" through Analysis
Based on recorded sleep duration and sleep efficiency, a sleep score from 0 to 100 is calculated. It also takes into account the regularity of bedtime and wake-up times and the number of nighttime awakenings to clearly quantify your current sleep state. Based on body movement data, it also estimates and displays the four stages of sleep: wakefulness, light sleep, deep sleep, and REM sleep (※These are estimated values ​​as it is a smartphone-only app).

■ Features that make it easy to continue

A bedtime routine checklist supports good sleep habits every night.
Streak badge function visualizes consecutive days of recording.
Calendar, daily/weekly graphs, and sleep rhythm chart allow you to check your sleep rhythm at a glance.
Supports power nap (short nap) recording.

■ Snoring and noise detection

Analyzes audio during sleep within the device and records the time and frequency of snoring and noises. The level of ambient noise is also displayed in 5 stages from "quiet to noisy" (because microphone accuracy calibration is not performed, it is displayed in stages rather than absolute dB values).

■ Wake-up support

In addition to the regular alarm, it features a "shake to stop" function that is effective in preventing oversleeping. A smart alarm function that wakes you up at the right time during light sleep is planned to be added in the future.

■ Privacy first

Sleep data and audio data are processed and stored within the device as a basic policy.

Automatic transmission to a server is not performed.
The voice recording function can be switched on/off at any time from the settings screen. Playback and deletion of recorded data are completed entirely within the app.
External output, such as CSV output and backup, is only performed when explicitly initiated by the user.

■ Not for Medical Use
This app's sleep score, sleep stage estimation, and improvement advice are provided as reference information for lifestyle improvement and are not a medical device or medical diagnostic app. Since it is not intended for diagnosis or treatment, please consult a medical institution if you have any health concerns.

■ Recommended for:

Those who are concerned about the quality of their sleep and want to make recording a habit.
Those who want to complete everything using only their smartphone without owning a wearable device.
Those who want to review their sleep trends with numbers and graphs.

Start with the free features. Daily recording and basic analysis, including bedtime/wake-up time recording, basic sleep score display, recent history/calendar, daily/weekly graphs, simple snoring detection display, and regular alarms, are available for free. Paid plans are available for those who require more detailed analysis and features, such as monthly/yearly graphs, detailed reports, CSV output, smart alarms, and sleep sounds.

Improving your sleep starts with recording your sleep patterns for the day.
Record and analyze your sleep using only your smartphone. This sleep management app visualizes your sleep patterns using an accelerometer and microphone, guiding you from identifying trends to suggesting improvements.
Updated on
Oct 26, 2026

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.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
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  • Data is encrypted in transit

What’s new

不具合の修正と改善を行いました。
・「アラームとリマインダー」を許可していない端末で、アラームが鳴らずアプリが終了する不具合を修正しました(通知でお知らせします)
・通知を許可していなくても、アラームが鳴っている時にアプリを開くと停止画面が表示されるようにしました
・起床時に画面が固まることがある不具合を修正しました
・購入状態をアプリの起動時に確認するようにしました。有償プランの購入情報がより確実に反映されます
・購入時の案内メッセージをわかりやすくしました
・有償プランが無効になった場合、古い記録や音声クリップを7日間は削除せず、削除予定をお知らせします
・有償プラン案内の特典一覧を実際の内容に合わせました
Content rating
Everyone
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App support

About the developer
梅田卓史
udtkfm.software.dev@gmail.com
矢部町2786−6 町田市, 東京都 194-0214 Japan