SLEEP‪!‬ 4+

SLEEP! is a simple sleep tracker that records and analyzes your sleep using just your smartphone

No wearables. No complicated setup. Just place your phone by your pillow, and SLEEP! will automatically detect and visualize your sleep stages from bedtime to wake-up. Track your sleep patterns daily and take the first step toward better rest.

Key Features

Phone-only tracking: Uses built-in smartphone sensors—no external devices required
Sleep stage estimation: Visualizes transitions between REM, light, and deep sleep
Daily sleep score: Understand the quality of your sleep with easy-to-read scores
Radar chart review: See trends and patterns in your sleep at a glance
Weekly & monthly tracking: Monitor long-term sleep rhythms and adjust habits
Recommended for those who:

Want to track sleep quality without wearing a device
Prefer effortless, automatic sleep logging
Wake up feeling tired and want to understand why
Appreciate simple design and easy-to-use apps they can stick with
Subscription
SLEEP! offers a monthly subscription plan for ¥200. You can cancel anytime.

◆ Fall asleep while reading — "Boring Story" feature
For those whose minds race at night, SLEEP! includes purposefully boring and monotone stories.
These texts cover topics like science, history, and structure—slightly informative but emotionally neutral—designed to reduce cognitive activity and gently lead you to sleep. Over 50 sleepy stories included, with no ads or pop-ups.

Possibly the most boring reading material in the world. Perfect for falling asleep.

Term of use: https://tnq-tech.web.app/term_of_use