Privacy Policy | SleepCalc

This Privacy Policy describes how SleepCalc ("we," "us," or "our") operates the website at https://sleep.vspic.com, a sleep calculator subdomain of vspic.com. By using our site, you agree to the practices described in this policy.

1. Information We Collect

SleepCalc is a free online sleep calculator. We do not require account registration, and we do not ask you to submit personal information to use the calculator.

We may collect the following types of information automatically:

Usage data: Pages visited, time spent, browser type, device type, operating system, and referring URL.
Technical data: IP address (anonymized where possible), general location (country/city level), and cookie identifiers.
Local storage: Your theme preference (light/dark mode) is stored in your browser's local storage only — it is never sent to our servers.

Sleep times you enter into the calculator are processed entirely in your browser and are not stored or transmitted to our servers.

2. Cookies and Tracking Technologies

We use cookies and similar technologies for the following purposes:

Essential cookies: To remember your display preferences (e.g., dark mode).
Analytics cookies: To understand how visitors use our site and improve the sleep calculator experience.
Advertising cookies: We use Google AdSense to display advertisements. Google and its partners use cookies to serve ads based on your prior visits to this site and other websites.

Google AdSense

Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to https://sleep.vspic.com or other websites. Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to https://sleep.vspic.com and/or other sites on the Internet.

Users may opt out of personalized advertising by visiting Google Ads Settings. Alternatively, you can opt out of third-party vendor cookies for personalized advertising by visiting www.aboutads.info.

For more information on how Google uses data, visit How Google uses information from sites that use its services.

3. How We Use Your Information

We use collected information to:

Operate and maintain the sleep calculator at sleep.vspic.com
Analyze site traffic and improve our content and tools
Display relevant advertisements through Google AdSense
Respond to support requests sent to support@vspic.com
Comply with legal obligations

4. Third-Party Services

We may use the following third-party services:

Google AdSense — advertising (Google Privacy Policy)

These third parties have their own privacy policies. We encourage you to review them.

5. Data Retention

Analytics and advertising data is retained according to each third-party provider's policies. We do not store calculator inputs or personal sleep data on our servers.

6. Your Rights

Depending on your location, you may have the right to:

Access the personal data we hold about you
Request correction or deletion of your data
Opt out of personalized advertising
Withdraw consent for non-essential cookies

To exercise these rights, contact us at support@vspic.com.

7. Children's Privacy

SleepCalc is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact support@vspic.com and we will delete it promptly.

8. International Users

https://sleep.vspic.com is accessible worldwide. If you access our site from outside your country of residence, your data may be transferred to and processed in countries with different data protection laws.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated "Last updated" date. Continued use of https://sleep.vspic.com after changes constitutes acceptance of the revised policy.

10. Contact Us

For privacy-related questions or requests, contact us at:

Effective date: June 5, 2026