[New Feature] Recovery & Sleep Analysis Feature Released
May 21, 2026

Thank you for always using Sanokuni!
sauna device-3 (SAWATCH-3) new feature announcement📣

1. Check your condition of the day every morning

By wearing sauna device-3 to sleep, based on your recovery status from sleep, your condition of the day is now displayed as a score from 0 to 100. With 5 levels of labels: 'Excellent,' 'Good,' 'Normal,' 'Slightly Poor,' and 'Poor,' it gives you hints to plan your day.
By tapping Recovery on the Home screen, the automatically generated morning Recovery Report will open. Since you can look back on the breakdown of heart rate variability, resting heart rate, and Sleep Score along with your previous day's Totonoi Log, steps, and calories, comparing your Recovery between days you took a sauna session and days you didn't is highly recommended to understand your condition patterns.
For more details, please check here.
2. 'Sleep Analysis' to deeply understand your sleep that night

In the Sleep Log details screen, 'Sleep Analysis' has been added.
- Valid Sleep Time: An estimate of the time actually spent sleeping, excluding awake time
- Sleep Need: An estimate of the sleep duration considered necessary for you
- Sleep Debt: An estimate of your accumulated sleep deprivation recently
Not only 'how much you slept,' but alsowhether it was sufficient for you and whether a deficit has accumulated is now visible.
For more details, please check here.
This was an announcement from Sanokuni regarding the release of the Recovery and Sleep Analysis features.
Thank you for your continued support of Sanokuni!
