Biphasic Nap Target

Calculate exact alarm timing to wake before entering N3 Slow-Wave sleep to prevent inertia.

JavaScript is required.

Assumption: Waking during N3 causes severe grogginess. Naps must be kept <30m or stretched to a full 90m cycle.

Estimated Sleep Latency (Minutes to fall asleep)

Time Getting into Bed

Power Nap (N1/N2 only)

Duration: Latency + 20m

Full Cycle (Includes REM)

Duration: Latency + 90m