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Sleep Calculator
Wake up between sleep cycles, not in the middle of one. Enter when you need to wake up (or when you're going to bed) and see cycle-aligned times for a refreshed morning.
Educational guidance only — not medical advice. Sleep-duration guidance reflects typical needs, but individual requirements vary and this is not a diagnosis. Persistent insomnia, loud snoring with pauses, or daytime exhaustion can signal a sleep disorder — speak to a doctor if poor sleep affects your daily life.