Privacy Policy

1. Overview

Soluna Sleep ("we," "us," or "our") operates WhenToSleep.org. This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information. By using our website, you agree to the collection and use of information in accordance with this policy.

2. Information We Do Not Collect

Our sleep calculators operate entirely within your browser. We do not collect, transmit, or store any of the times, ages, or personal details you enter into our calculator tools. This data never leaves your device and is not accessible to us.

3. Information Collected Automatically

Like most websites, we collect certain information automatically when you visit WhenToSleep.org:

• Log data: IP address, browser type, referring/exit pages, browser version, and date/time of visit — collected via standard server logs
• Usage data: Pages visited, time spent on pages, and navigation patterns — collected via Google Analytics
• Cookies: Small files placed on your browser used by Google Analytics and Google AdSense (see Section 5 below)

This data is used only to understand aggregate site usage, improve the site, and serve relevant advertising. It is not linked to any personally identifiable information.

4. Google Analytics

We use Google Analytics to understand how visitors use WhenToSleep.org. Google Analytics collects information about your visit (pages viewed, duration, approximate location derived from IP, device type) and aggregates it into reports we use to improve the site.

Google Analytics may set cookies in your browser. You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.

Google's privacy policy governs how Google handles data collected via Analytics: policies.google.com/privacy

5. Advertising — Google AdSense

WhenToSleep.org is free to use and is supported by display advertising served by Google AdSense (Publisher ID: ca-pub-4921240175329435). Google AdSense uses cookies and web beacons 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 based on your visit to our site and/or other sites on the Internet. You may opt out of personalized advertising by visiting Google's Ads Settings or aboutads.info.

Third-party vendors, including Google, use cookies to serve ads based on your prior visits to our website or other websites. These cookies allow Google and its partners to serve ads based on your interests.

6. Cookies

Cookies are small text files stored in your browser. We use:

• Analytics cookies (Google Analytics) — to understand site usage
• Advertising cookies (Google AdSense) — to serve and measure ads

We do not use cookies for authentication, preferences, or any purpose beyond analytics and advertising. You can control cookie settings in your browser preferences. Disabling cookies may affect how ads are displayed but will not prevent you from using our calculators.

7. Children's Privacy

WhenToSleep.org is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us and we will delete such information promptly.

8. Links to Other Sites

Our site may contain links to external websites. We are not responsible for the privacy practices or content of those sites. We encourage you to review the privacy policy of any site you visit.

9. Your Rights (EEA, UK, California)

If you are located in the European Economic Area, United Kingdom, or California, you may have additional rights regarding your personal data, including the right to access, rectify, or erase data. Because we do not collect personal data beyond standard server logs and analytics data, there is typically nothing to access, rectify, or erase beyond what is managed by Google's platforms directly.

For requests related to data processed by Google (Analytics/AdSense), please refer to Google's privacy controls linked above.

10. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be reflected by the "Last updated" date at the top of this page. Continued use of WhenToSleep.org after any changes constitutes acceptance of the updated policy.

11. Contact

If you have questions about this Privacy Policy, please review our About page for contact information.