Privacy Policy

Information We Collect

Sleep Cycle Calculator is designed with a privacy-first approach. All core calculations—such as inputting target wake times, bedtimes, age categories, or sleep onset latency—are executed locally in your web browser. We do not transmit or store your personal sleep inputs on remote servers.

When you interact with our website, we may collect minimal non-personal information:

• Contact Information: If you voluntarily reach out via our contact form, we collect the name, email address, and message content you provide to respond to your inquiry.
• Technical Access Logs: Standard web hosting logs may automatically record anonymous technical data such as browser type, device category, referring URL, and date/time stamps for security and system diagnostics.

How We Use Information

Any information collected is used solely to maintain, secure, and improve our services:

• To provide and operate the Sleep Cycle Calculator website and its interactive tools.
• To answer inquiries, support requests, and user feedback.
• To detect, prevent, and address technical issues or security threats.

Cookies and Similar Technologies

We use browser local storage exclusively to remember your preferred UI settings, such as your theme preference (Light or Dark mode) and your most recent calculator mode selection. We do not use third-party tracking cookies or invasive advertising identifiers.

Third-Party Services

Our website is hosted on secure cloud infrastructure providers that process anonymous network traffic to deliver web assets efficiently worldwide. These providers maintain rigorous enterprise data security standards.

Data Security

We implement appropriate administrative and technical measures, including HTTPS encryption in transit, to safeguard any data transmitted through our website. However, no internet transmission is 100% secure, and we encourage users to avoid transmitting sensitive personal health information through open forms.

Your Choices

You can clear your local storage preferences at any time directly through your browser settings. You can also contact us to request the deletion of any previous correspondence submitted through our contact form.