FAQ

Does it work without a smartwatch?
Yes. We compute optimal windows using ~90‑minute cycles and your inputs.

Should I choose wake or sleep mode?
Either works. Pick what’s most convenient today.

Are cycles always 90 minutes?
It’s an average (≈80–110 min). Good enough for planning and consistency.

Is this medical advice?
No. Somnina is informational only. If you have persistent sleep issues, please consult a professional.