💤 Sleep Calculator

Based on 90‑minute sleep cycles • Wake up at the right phase

I want to wake up at

(wake)

⏱️ 5–6 cycles

⏳ Fall asleep in

minutes

adjust if needed

🌜 Bedtime --:--

🌞 Wake‑up --:--

🔄 Sleep cycles 0

⚡ optimal

90‑minute cycle · Includes 15 min to fall asleep.
Adjust fall‑asleep time for more accurate results.