1. Overview & Privacy Philosophy
OnlineSleepCalculator.com ("we", "us", or "our") operates a suite of free, web-based wellness tools including 90-minute sleep cycle calculators, power nap timers, sleep debt tools, and chronotype quizzes. We are committed to maintaining the confidentiality, security, and integrity of our users' information.
2. Information We Collect
We do not require user account registration, passwords, or personal profile creation to use any of our calculators.
- Local Calculation Data: Inputs such as wake-up times, bedtimes, age categories, or quiz choices remain inside your browser memory and are processed strictly on your client device.
- Contact Form Submissions: If you voluntarily submit a message via our Contact Us form, we receive the name, email address, subject, and message text you provide. Submissions are delivered to newsaaya00@gmail.com.
3. Cookies & Local Storage
Our website uses HTML5 localStorage solely to remember user interface preferences, such as
your collected background stars counter score, sound player volume states, or active sleep countdown
timers. These items remain stored locally on your device and can be cleared at any time through your web
browser settings.
4. Third-Party Services
We utilize trusted web infrastructure services to deliver page assets:
- Google Fonts: Used to load modern typography ('Inter' and 'Outfit'). Google may collect basic technical request data (such as IP address) to serve font files.
5. Children's Online Privacy Protection (COPPA)
OnlineSleepCalculator.com is an educational wellness tool suitable for general audiences. We do not knowingly solicit or collect personally identifiable information from children under the age of 13.
6. Data Security & Retention
We implement industry-standard security practices to protect communication channels. However, no internet transmission or electronic storage method is 100% secure. You are encouraged to avoid submitting sensitive personal health records via public contact forms.
7. Updates to This Privacy Policy
We reserve the right to update or modify this Privacy Policy as our services evolve. Any revisions will be reflected on this page with an updated effective date.
8. Contact & Privacy Inquiries
If you have any questions or concerns regarding this Privacy Policy or your data, please contact us at: