Last updated: October 30, 2026
This policy explains what information Sleep Calculator Cycle (sleepcalculatorcycle.com) collects and how it is used.
The calculator
Our calculators run entirely in your browser. The times you enter are not sent to us or stored on our servers.
Information we collect
Like most websites, our hosting provider may log basic technical data such as your IP address, browser type and the pages you visit. This is used to keep the site secure and working. If you email us, we receive your email address and message, which we use only to reply.
Cookies
Cookies are small files stored on your device. We may use cookies for basic site features, anonymous analytics and advertising. You can block or delete cookies in your browser settings.
Advertising
We may show ads served by Google AdSense and other third-party vendors. These vendors, including Google, use cookies to serve ads based on your previous visits to this and 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 can opt out of personalised advertising by visiting Google Ads Settings, or opt out of some third-party vendors' cookies at aboutads.info. Learn more in how Google uses data from sites that use its services.
Visitors from the UK and the European Economic Area will be asked for consent before personalised ads are shown.
Children
This site is not directed at children under 13, and we do not knowingly collect their personal information.
Your rights
Depending on where you live (for example under the UK GDPR, EU GDPR or California law), you may have the right to access, correct or delete personal data we hold about you. Contact us to make a request.
Changes
We may update this policy from time to time. The date at the top shows the latest version.
Contact
Questions about privacy? Email contact@sleepcalculatorcycle.com or visit our contact page.