Terms of Use

Last updated: 16 October 2026.

Plain-language terms for using All Sleep Calculators. By using the site, you agree to these terms.

The service

All Sleep Calculators provides free sleep planning calculators and educational guides. The service is provided “as is,” without warranties of any kind. We work to keep the tools accurate and available, but we do not promise uninterrupted access or error-free results.

Not medical advice

Nothing on this site is medical advice, diagnosis, or treatment. The calculators produce planning estimates based on documented averages and simplifications, described in full on the methodology page. They cannot assess your health. If you have a sleep disorder or a medical concern, consult a qualified health professional.

Acceptable use

• Use the tools for personal, non-commercial planning.
• Do not attempt to disrupt the site, scrape it aggressively, or misrepresent its output as medical guidance.
• Do not use the site in a way that breaks any law.

Content and intellectual property

The guides, copy, and calculation logic on All Sleep Calculators are our original work. You may link to our pages and quote brief excerpts with attribution. You may not republish substantial portions of the site as your own.

Limitation of liability

To the extent allowed by law, we are not liable for any loss or harm arising from your use of the site or reliance on its estimates. Because the service is free, our total liability is limited to the amount you paid for it, which is zero.

Changes

We may update these terms as the site evolves. The current version will always be posted on this page with its last-updated date. Continued use of the site after changes means you accept the updated terms.

Questions about these terms? Email [email protected].