Sleep Cycle

Privacy Policy

Last updated: June 23, 2026

This Privacy Policy explains how this website ("we", "us") handles information when you visit cyclewake.com. By using the site, you agree to the practices described here.

Information we collect

The calculator runs entirely in your browser. The wake-up time and fall-asleep duration you enter are processed on your device and are not sent to or stored on our servers. We do not offer accounts, and we do not ask you for personal information such as your name or email unless you choose to email us directly.

Like most websites, our hosting provider may automatically log standard technical data (such as IP address, browser type, and pages visited) for security and aggregate traffic measurement.

Cookies and advertising

We use Google AdSense to display ads, which helps keep this tool free. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites.

Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the internet. You can opt out of personalized advertising by visiting Google Ads Settings. You can also learn more about how Google uses information from sites that use its services at policies.google.com/technologies/partner-sites.

Other third-party vendors may also place cookies. You can opt out of many third-party advertising cookies at aboutads.info/choices or youronlinechoices.eu. You can also disable cookies entirely in your browser settings, though some features may not work as intended.

Analytics

We may use a privacy-respecting analytics service to understand aggregate, anonymized usage (for example, how many people visit a page). This data is not used to identify you personally.

Your rights and choices

Depending on where you live, you may have rights over your personal data. If you are in the European Economic Area or the UK, the GDPR may give you rights to access, correct, or delete personal data we hold about you. If you are a California resident, the CCPA may give you similar rights. Because we do not maintain personal accounts, we typically hold little to no personal data, but you can contact us with any request.

Children

This site is intended for a general audience and is not directed to children under 13 (or under 16 in the EEA). We do not knowingly collect personal information from children.

Changes to this policy

We may update this policy from time to time. When we do, we will revise the "Last updated" date above. Continued use of the site after changes means you accept the updated policy.

Contact

Questions about this policy? Reach us at zhiyi@cyclewake.com or via the contact page.

This document is a general template provided for convenience and is not legal advice. For a policy tailored to your specific situation and jurisdiction, consult a qualified professional.