Somnus/ソムナス-睡眠の質を計測し、分析するアプリ
somnus
About App
This is a must-have app for improving the quality of your sleep, such as setting an alarm when you're in a light state of sleep so you can wake up refreshed in the morning, and learning about ways to improve your sleep that are right for you!
[Recommended for these people]
・Those who want to manage their sleep
Developer info