Sleepcraft: 睡眠追踪器

Independent scoring for deep sleep, REM, and each sleep stage. 12-hour clock face display. Age-calibrated clinical benchmarks. Understand how habits affect sleep quality. 100% device-side processing.

Sleepcraft reads your sleep data from Apple Health and analyzes it in a different way than most apps.
It shows your sleep on a 12-hour dial, allowing you to accurately see the time spent in deep sleep, REM, light sleep, and wakefulness. Sleepcraft provides independent scores for each stage.
The scores are calibrated based on your age and gender, using clinical benchmarks from NIH, CDC, and NHS.
You can mark daily factors such as evening coffee, alcohol, or intense exercise and see how they affect each individual stage.
It also links your daytime activity energy and HRV to nighttime recovery and uses historical data to predict the quality of your sleep tonight.
All processing takes place on your iPhone. There are no backend servers and no accounts.