Privacy Policy

Last updated: November 9, 2026

Overview

This Privacy Policy describes how SleepCalculator ("we", "us", or "our") handles information when you use our website. The sleep calculator runs entirely in your browser — the times you enter are never sent to, or stored on, our servers.

Information We Collect

We do not require registration and we do not ask you to provide personal information. Like most websites, our hosting may automatically record standard technical information (such as IP address, browser type, and pages visited) in server logs for security and analytics purposes.

Cookies and Third-Party Advertising

We may display advertisements served by third-party networks, including Google AdSense. These vendors may use cookies or similar technologies to serve ads based on your prior visits to this or other websites.

• Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the Internet.
• You may opt out of personalized advertising by visiting Google Ads Settings or www.aboutads.info.

Visitors in the EEA, UK, and Switzerland are presented with a consent notice and may manage their choices before personalized ads are served, as required by applicable law.

Analytics

We may use analytics services to understand aggregate usage of the site (for example, page views and session duration). These services use cookies; you can disable cookies in your browser settings, though some features of the site may be affected.

Children's Privacy

This website is not directed at children under 13, and we do not knowingly collect personal information from children.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date.

Contact

If you have questions about this policy, please reach us via the contact page.