Privacy Policy
SleepyClock ("we", "us", or "this site") provides a free sleep calculator. Your privacy matters to us. This page explains what data we collect, how we use cookies, and the choices you have.
Information we collect
We do not require you to sign up, log in, or submit any personal information. The calculator runs entirely in your browser.
- Local storage: Your preferred language and light/dark theme are saved in your browser's local storage so they persist between visits. This data never leaves your device.
- Server logs: Like almost all websites, our hosting provider (Cloudflare) may automatically record standard technical logs such as your IP address, browser type, and the pages you visited. These are used only for security and anonymous traffic analytics.
Cookies and advertising
To keep this tool free, we participate in the Google AdSense advertising program. Google and its partners may use cookies to serve ads based on your prior visits to this and other websites.
- We display a cookie consent banner on your first visit. Advertising cookies and the AdSense script are loaded only after you click "Accept"; if you choose "Reject", no advertising cookies are set.
- Google uses the
__gaand advertising cookies (_gcl_au,IDE,NID, etc.) to personalize and measure ads. - You can disable personalized advertising by visiting the Google Ads Settings or opt out of third-party cookies via Your Online Choices.
- You can also control cookies through your browser settings at any time.
Children's privacy
This site is not directed at children under 13, and we do not knowingly collect personal information from children. If you believe a child has provided us data, contact us and we will remove it.
Third-party links
Our articles may link to external websites (e.g., health resources). We are not responsible for the privacy practices of those sites; please review their policies separately.
Changes to this policy
We may update this Privacy Policy from time to time. Material changes will be reflected by the "Last updated" date above.
Contact
If you have questions about this policy, email us at privacy@sleepyclock.top.