About GoodSleep

Free, science-backed sleep tools — no sign-up, no tracking, no ads (yet).

Our Mission

GoodSleep was built with one simple goal: help everyone sleep better. We believe that understanding your sleep is the first step to improving it — and that the best tools should be free and accessible to everyone.

Every calculator, quiz, and guide on this site is grounded in peer-reviewed sleep science from institutions like the National Sleep Foundation, the American Academy of Sleep Medicine, and the Sleep Research Society.

What We Offer

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Sleep Cycle Calculator

Find the perfect bedtime or wake-up time based on 90-minute sleep cycles.

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Nap Calculator

Optimal nap durations to boost energy without grogginess.

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Sleep by Age

Science-backed sleep recommendations for every age group.

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Sleep Debt Calculator

Track your weekly sleep deficit and learn how to recover.

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Chronotype Quiz

Discover your biological sleep type — lion, bear, wolf, or dolphin.

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Sleep Schedule Builder

Create a personalized 7-day sleep routine based on your lifestyle.

Our Principles

  • Science-first: Every recommendation is backed by published research. We cite our sources and avoid pseudoscience.
  • Free forever: All tools are completely free to use. No premium tiers, no paywalls, no sign-ups required.
  • Privacy-respecting: We don't collect personal data. Your sleep calculations stay in your browser.
  • No medical claims: We provide educational information, not medical advice. Always consult a healthcare professional for persistent sleep issues.

Sources & References

Our content draws from established sleep research, including:

Contact

Have questions, feedback, or suggestions? We'd love to hear from you. Visit our contact page to get in touch.