iPhone Screenshots


Smart Sleep Manager" has a new name - "JUKUSUI"!

NEW: Cloud Storage Available
You can keep all of your sleep record safe on a dedicated server. All you need to do is sign up for this service on the app. Once you log in, your daily sleep record is automatically accumulated in the server. You don't need to back up the data. Even when you change your device, your data can be transferred from your old device to the new advice.

You can see the stored sleep record on the Web browser. By logging into the service on the website (jukusui.com) using the account, you can see all of your sleep record. Moreover, you can edit the data on both your smartphone and your computer. Once edited, the data stored on the app will be automatically synced with the data stored on the server.

This cloud storage service is free. Why don't you experience this amazing service?
Note: On starting this service, the existing backup/restore function is no longer available.

Website: https://jukusui.com/
(This website is currently written in Japanese language only. )

- Set the alarm and just tap the "Bedtime" button before you sleep! Easy step for pleasant sleep.
- More than 30 tunes are available for "Lull Sound" that induces deep sleep and alarm sound that wakes you up with comfort!
- Smart Alarm monitors your sleep and wakes you up while you're in REM sleep.
- Daily & monthly sleep report helps You find your best sleep rhythm.
- Alarm options such as snooze, repeat and vibration can be customized for each alarm!

JUKUSUI is a multi-functional alarm clock designed to improve your sleep, fully loaded with functions which is good for those who have trouble getting to sleep or waking up, and who want to have better sleep habit.
Please make use of this app for healthy sleep habit of your family and yourself.

*** FEATURES ***
- Lull Sound
Function that plays healing sounds which induce pleasant sleep. Good for those who suffer from insomnia, who have trouble getting to sleep or who need more relaxation in sleeping. (Works better with a headphone.)

- Smart Alarm
Function that monitors body movements using accelerometer in your smartphone and activates the alarm when you're in light sleep. Good for those who wake up feeling tired, who always turn off your alarm only to fall back to sleep or who have trouble waking up in the morning due to hypotension.

- Sleep Report
Just tap the "Bedtime" button when you sleep and tap the "Wake-up" button when you hear the alarm to get your sleep log. You can check quality of your sleep as well as bedtime, wake-up time and hours of sleep of the day.
You'll find tendency of your sleep and best sleep cycle for you from your sleep log.

- Integration with Health app (iOS8 or later)
JUKUSUI can share its sleep data with the new iOS 8's Health app. By enabling its integration with the Health app, bedtime and wake-up time recorded with JUKUSUI will be saved automatically to the sleep analysis of the Health app.

Other Features
- Wake-up task strongly helps you wake up.
- Fading-in alarm sound wakes you up gently.
- Back-up function protects your data when you switch devices.

*** ABOUT ***
- Paid Sound
Five tracks are available free of charge for Lull Sound and alarm sound for each. You can purchase other paid sounds with in-app purchase.

- Support
If you have any request or question about this app, please email us at the following address.

What’s New

Version 1.32.22

Minor fix

Ratings and Reviews

4.2 out of 5
5 Ratings

5 Ratings

MagisterCrow ,

Great tool

Good tool for tracking. It's pretty intuitive, but starting out it has a few features that are tricky to understand.

TheCrayZ1 ,

Add this!

This is the best alarm is so loud. I really like that you can make it sound through the speaker. I use my headphones to hear rain sounds cause it helps me sleep. The headphones comes out of my ear at night so is nice to know that I will hear the alarm. I just hope that you will add the ability to use the alarm without having to hit bedtime every time. Sometimes I use the alarm just to wake me up if I fall asleep on my chair while watching TV. So please if you could add that on the next update. Thank you for making this awesome alarm.

Sarah.Min ,


This is a nice App to help you sleep well.


C2 inc.
100.6 MB
Health & Fitness

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese

Age Rating
Rated 9+ for the following:
Infrequent/Mild Mature/Suggestive Themes
© 2017 C2 inc.
In-App Purchases
  1. Alarm sound "aloha mau loa" $0.99
  2. Alarm sound "Time for relax" $0.99
  3. Lull Sound "Berceuse Op. 57" $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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