Your nights become a signal.
The program learns your patterns, obstacles and what actually helps — without reducing you to a score.
✦ A PROGRAM THAT ADAPTS TO YOU
Answer a few questions, by voice or in writing, to discover your main sleep obstacle and receive a personalized first action.
Sleep better, without trying harder.
SuyaSuya — すやすや — is a Japanese expression evoking peaceful, restful sleep.
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✦ TODAYProtect your wake time
One clear action to strengthen your rhythm.
NEXT STEPReady at 9:30 PM
SLEEP, REIMAGINED
Not a tracker. A trajectory.
SuyaSuya turns your nights into calm, explainable and truly personal decisions.
Each week, just enough.
Your sleep window evolves only through transparent, verifiable rules.
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Only one thing matters today.
No endless list. SuyaSuya chooses the next useful action, then lets you breathe.
HOW IT WORKS
From your answers to one practical next step.
Start with the free assessment—no account or card. In the iPhone app, choose manual entry, Apple Watch through Apple Health, or both combined. We ask for your email only when your result is ready.
Assess
Answer practical questions about your nights, days, and schedule.
Observe
For five nights, enter simple estimates; perfect data is not required.
Act
Get one clear priority and careful adjustments, explained each week.
WHAT MAKES DECISIONS
Verifiable rules, not improvising AI.
The deterministic engine calculates schedules and applies safety rules. AI supports conversation and explanation; it never changes your sleep window.
BOUNDARIES AND SAFETY
A self-guided sleep-improvement program.
SuyaSuya uses behavioral principles informed by CBT-I. It is not a diagnosis, medical treatment, or replacement for a healthcare professional.
A bad night is not a failure.The program does not punish you or ask you to compensate. It protects your rhythm and adapts the next step carefully.
PRACTICAL QUESTIONS
What happens in the first week?
You complete the assessment, then five simple morning diaries establish a baseline before any sleep-window adjustment.
Do I need exact sleep times?
No. Honest estimates are enough; SuyaSuya avoids encouraging you to monitor the night.
What happens after a bad night?
The program does not punish you. It protects safety limits, explains the next step, and avoids abrupt compensation.
Can AI change my schedule?
No. Only the deterministic engine applies scheduling rules. AI supports explanation and conversation.
YOUR NIGHT STARTS HERE
Less noise. More rhythm.
Why SuyaSuya?
Privacy and data useTerms of useIn Japanese, すやすや (suyasuya) is a mimetic expression for someone sleeping peacefully, with soft, steady breathing. We chose it for the state the program helps you rediscover—without promising perfect nights.