Terms of Service

1. Acceptance of Terms

By accessing and using the Sleep Calculator (the "Service"), you accept and agree to be bound by the terms and provisions of this agreement. If you do not agree to abide by these terms, please do not use this Service.

2. Description of Service

Sleep Calculator is a free web-based tool provided by Atlasna Tech that helps users calculate optimal bedtime and wake-up times based on 90-minute sleep cycles. The Service is provided for informational and educational purposes only.

3. Medical Disclaimer

The Sleep Calculator is not a medical device and should not be used as a substitute for professional medical advice, diagnosis, or treatment. The information provided is based on general sleep science principles and may not be suitable for everyone.

Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or sleep disorder.

4. Use License

Permission is granted to temporarily use the Sleep Calculator for personal, non-commercial purposes only. This license shall automatically terminate if you violate any of these restrictions.

You may not:

• Modify or copy the materials
• Use the materials for any commercial purpose
• Attempt to reverse engineer any software contained in the Service
• Remove any copyright or proprietary notations
• Transfer the materials to another person or "mirror" the materials on any other server

5. Disclaimer of Warranties

The Service is provided "as is" without any representations or warranties, express or implied. Atlasna Tech makes no representations or warranties in relation to this Service or the information and materials provided.

6. Limitations of Liability

In no event shall Atlasna Tech or its suppliers be liable for any damages (including, without limitation, damages for loss of data or profit, or due to business interruption) arising out of the use or inability to use the Service.

7. Accuracy of Information

While we strive to provide accurate calculations based on sleep science, we make no warranties about the completeness, reliability, or accuracy of this information. Sleep patterns vary greatly between individuals, and the suggested times should be used as general guidance only.

8. Changes to Terms

Atlasna Tech reserves the right to revise these terms of service at any time without notice. By using this Service, you are agreeing to be bound by the current version of these terms.

Last Updated: October 29, 2025

Atlasna Tech ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we handle information when you use our Sleep Calculator service.

1. Information We Collect

Personal Information: We do NOT collect any personal information. The Sleep Calculator operates entirely in your browser, and no data is transmitted to our servers.

Usage Data: We do not collect, store, or process any usage data, browsing history, or personal identifiers.

2. How We Use Information

Since we do not collect any personal information, there is no data to use, share, or process. All calculations are performed locally in your web browser.

3. Cookies and Tracking

The Sleep Calculator does not use cookies, tracking pixels, or any other tracking technologies. We do not track your activity across websites or services.

4. Third-Party Services

Our Service uses Tailwind CSS via CDN for styling purposes. When you access our site, your browser may connect to the Tailwind CDN. Please refer to Tailwind's privacy policy for information on their data practices.

We do not integrate any analytics services, advertising networks, or other third-party tracking services.

5. Data Security

Since we do not collect or store any user data, there is no personal information at risk. All sleep time calculations are performed locally in your browser and are never transmitted to any server.

6. Children's Privacy

Our Service does not address anyone under the age of 13. We do not knowingly collect personal information from children under 13. Since we don't collect any personal information at all, this extends to users of all ages.

7. Your Rights

Since we do not collect any personal data, there is no personal information to access, modify, or delete. You have complete control over your privacy when using our Service.

8. Changes to Privacy Policy

We may update our 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.