Sleep Cycle Calculator This policy explains what information Sleep Cycle Calculator (“we,” “our,” “the site”) collects when you use this website, and how it is used. We built the calculators on this site to run entirely in your browser, so most of what you enter, like an age or a wake-up time, never leaves your device.
Information we do not collect
The bedtime, age, hours-slept, and sleep debt calculators on this site process your inputs locally in your browser using JavaScript. We do not collect, store, or transmit the ages, times, or sleep hours you enter into any calculator on this site.
Information collected automatically
Like most websites, we automatically receive some technical information when you visit, through standard web server logs and analytics tools. This can include your approximate location (city/country level), browser type, device type, pages visited, and how long you spent on them. This is used only to understand how the site is used and to fix problems, not to identify you personally.
Cookies
This site may use cookies for:
- Analytics (such as Google Analytics), to understand site traffic and usage patterns.
- Advertising (such as Google AdSense), which may use cookies to show ads based on your visits to this and other sites.
You can disable cookies in your browser settings at any time. Doing so may affect some site functionality but will not break the calculators.
Google AdSense / third-party advertising
If this site displays ads through Google AdSense or a similar network, those third parties may use cookies, web beacons, or similar technologies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising through Google’s Ads Settings or by visiting aboutads.info.
Third-party links
This site may link to external resources for further reading. We are not responsible for the privacy practices or content of external sites.
Children’s privacy
This site does not knowingly collect personal information from children. The calculators are general-audience reference tools and do not require any account, login, or personal data to use.
Changes to this policy
We may update this policy from time to time. Changes will be posted on this page with an updated revision date.
Contact
Questions about this policy can be sent to contact@thesleepcalculator.net.