🌙 Sleep & REM Optimizer

Calculate optimal bedtimes and wake alarms based on natural 90-minute REM cycles. Wake up refreshed and eliminate morning sleep inertia.

Time to fall asleep (latency):
RECOMMENDED CYCLE TIMINGS:
💤 Why 90-Minute Cycles? Human sleep consists of alternating Non-REM and REM stages lasting ~90 minutes. Waking up in the middle of deep sleep causes grogginess and brain fog (sleep inertia). Waking at the end of a full cycle ensures maximum energy and focus.