Privacy Policy

Last updated: October 30, 2025

Introduction

Sleep Calculator ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website sleepcalculator.rest.

Information We Collect

Information You Provide

Our sleep calculator is designed to work entirely in your browser. We do not collect or store any personal sleep time preferences you enter into the calculator. All calculations are performed locally on your device.

Automatically Collected Information

When you visit our website, we may automatically collect certain information, including:

  • Browser type and version
  • Operating system
  • IP address
  • Pages visited and time spent on pages
  • Referring website addresses
  • Device information

How We Use Your Information

We use the automatically collected information to:

  • Improve and optimize our website
  • Analyze usage patterns and trends
  • Ensure website security
  • Display relevant advertisements (via Google AdSense)
  • Troubleshoot technical issues

Cookies and Tracking Technologies

We use cookies and similar tracking technologies to enhance your experience on our website. Cookies are small data files stored on your device.

Types of Cookies We Use:

  • Essential Cookies: Required for the website to function properly
  • Analytics Cookies: Help us understand how visitors use our website
  • Advertising Cookies: Used by Google AdSense to display relevant ads

You can control cookies through your browser settings. However, disabling cookies may affect your experience on our website.

Third-Party Services

Google AdSense

We use Google AdSense to display advertisements. Google may use cookies to serve ads based on your prior visits to our website or other websites. You can opt out of personalized advertising by visiting Google's Ads Settings.

Analytics Services

We may use third-party analytics services to monitor and analyze website traffic. These services may collect information about your visit, including pages viewed, time spent, and navigation patterns.

Data Security

We implement reasonable security measures to protect your information. However, no method of transmission over the internet or electronic storage is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.

Children's Privacy

Our website is not directed to children under the age of 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.

Your Rights

Depending on your location, you may have certain rights regarding your personal information, including:

  • The right to access your personal information
  • The right to correct inaccurate information
  • The right to request deletion of your information
  • The right to object to processing
  • The right to data portability

International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. These countries may have different data protection laws. By using our website, you consent to such transfers.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. We encourage you to review this Privacy Policy periodically.

Contact Us

If you have questions or concerns about this Privacy Policy, please contact us at:

GDPR Compliance (EU Users)

If you are located in the European Economic Area (EEA), you have additional rights under the General Data Protection Regulation (GDPR):

  • Right to access your personal data
  • Right to rectification of inaccurate data
  • Right to erasure ("right to be forgotten")
  • Right to restrict processing
  • Right to data portability
  • Right to object to processing
  • Right to withdraw consent

CCPA Compliance (California Users)

If you are a California resident, you have rights under the California Consumer Privacy Act (CCPA):

  • Right to know what personal information is collected
  • Right to know if personal information is sold or disclosed
  • Right to opt-out of the sale of personal information
  • Right to deletion of personal information
  • Right to non-discrimination for exercising CCPA rights