Compare how much you actually sleep against the recommended amount for your age, and see your accumulated weekly deficit.
Roughly 7-9 hours for most adults, based on National Sleep Foundation age guidance — this calculator uses the midpoint of that range for your age band.
Partially — extra sleep helps recovery, but sleeping in on weekends doesn't fully undo the effects of a week of short nights. Consistency matters more than catch-up.
It's linked to impaired focus, slower reaction time, mood changes and reduced physical recovery. This calculator gives you a number, not a diagnosis — persistent sleep problems are worth discussing with a doctor.
Quantum Khor is a wellness companion, not a medical device. It does not diagnose, treat or prevent any condition.