"Blue Sleeper" was born out of the need to tackle this simple problem.

Start up the application whilst in a darkened room, and try taking
slow deep breaths in line with the soft changes on the screen.

By breathing deeply repeatedly at a fixed rhythm:

○It is considered to stabilize your heart rate, and relieve mental tension.
○It acts on the parasympathetic nerves, helping you relax.

All those cures can help you fall asleep.
It comes with 3 great useful functions:
・It can match the rhythm to your breathing pace (speed adjustment functionality)
・Once the specified time has passed, the screen turns itself OFF
(timer functionality)
・The photo can be changed with a simple tap (photo functionality)

It has many different uses; under the iPhone/iPad settings you can
adjust the brightness of the screen, or you can use it as "joined
illumination" by shining it against a wall rather than looking at it
directly.

At least once, I would definitely like to enjoy a relaxed sleep in
"Blue Sleeper".


※In general, deep breathing is safe and is considered to be good for
your health.
※If you have any respiratory problems, you should consult with your
doctor beforehand.
※Before using, please be aware that this application is not a type of
medical equipment.