Sleep Cycle Calculator

Terms of Use & Disclaimer

Last updated: October 16, 2026

Terms of use

By using Sleep Cycle Calculator (“the site”), you agree to the following terms. If you do not agree, please do not use the site.

Use of the tools

All calculators on this site (bedtime, wake-up time, age-based sleep needs, hours-enough checker, kids’ bedtime, sleep debt) are provided free of charge for general reference. You may use them for personal, non-commercial purposes.

No warranty

The site and its tools are provided “as is,” without warranties of any kind, express or implied. We do not guarantee the results will be error-free, uninterrupted, or suitable for any particular purpose.

Intellectual property

The design, text, and code on this site are owned by Sleep Cycle Calculator unless otherwise noted. You may not copy, republish, or redistribute substantial parts of the site without permission.

Limitation of liability

We are not liable for any damages or losses arising from your use of, or inability to use, this site or its calculators.

Health and medical disclaimer

The content on this site, including all sleep cycle, bedtime, age-based sleep need, and sleep debt calculations, is provided for general informational and educational purposes only. It is based on established, publicly available sleep-science and pediatric sleep guidelines, and it is not medical advice, a diagnosis, or a substitute for professional medical care.

Individual sleep needs vary. If you have ongoing trouble sleeping, excessive daytime sleepiness, or any concern about your own or your child’s sleep, please consult a doctor, pediatrician, or qualified sleep specialist. Do not disregard or delay seeking professional medical advice because of something you read on this site.

Changes to these terms

We may update these terms from time to time. Continued use of the site after changes are posted means you accept the updated terms.

Contact

Questions about these terms can be sent to contact@thesleepcalculator.net.

This site gives general guidance based on sleep-cycle research and isn’t a medical device or diagnosis. If sleep problems are persistent, talk to a doctor or sleep specialist.

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