Terms of Use

Guidelines for using SleepCycle.tools

Last Updated: March 14, 2025

1. Agreement to Terms

By accessing or using SleepCycle.tools ("the Service"), you agree to be bound by these Terms of Use. If you disagree with any part of these terms, you may not access the Service.

These Terms of Use constitute a legally binding agreement between you and SleepCycle.tools regarding your use of the Service.

2. Description of Service

SleepCycle.tools provides a web-based calculator designed to help users determine optimal bedtimes based on 90-minute sleep cycles and scientific principles of sleep architecture. The Service also offers educational content about sleep science through blog articles and resources.

The Service is provided free of charge for personal, non-commercial use.

3. Intellectual Property Rights

The Service and its original content, features, and functionality are owned by SleepCycle.tools and are protected by international copyright, trademark, patent, trade secret, and other intellectual property or proprietary rights laws.

3.1 Open Source License

The codebase for SleepCycle.tools is available under the MIT License. This means you may:

  • Use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software
  • Use the software for personal, academic, or commercial purposes

Subject to the following conditions:

  • The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

3.2 Content License

Unless otherwise stated, blog content, articles, and educational materials are provided under a Creative Commons Attribution-NonCommercial 4.0 International License. This means you may:

  • Share — copy and redistribute the material in any medium or format
  • Adapt — remix, transform, and build upon the material

Under the following terms:

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made.
  • NonCommercial — You may not use the material for commercial purposes.

4. User Responsibilities

4.1 General Responsibilities

By using SleepCycle.tools, you agree to:

  • Use the Service in a manner consistent with all applicable laws and regulations
  • Not engage in any activity that interferes with or disrupts the Service
  • Not attempt to gain unauthorized access to any portion of the Service
  • Not use the Service for any illegal or unauthorized purpose

4.2 User Contributions

If the Service allows users to post comments, feedback, or other content:

  • You retain ownership of your content but grant SleepCycle.tools a non-exclusive license to use, display, and share your content in connection with the Service
  • You are solely responsible for the content you post
  • Content must not be illegal, harmful, threatening, abusive, defamatory, or otherwise objectionable

SleepCycle.tools reserves the right to remove any user content at its sole discretion.

5. Medical Disclaimer

SleepCycle.tools is not a medical device or healthcare service. The information provided by the Service is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment.

Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition or your sleep health. Never disregard professional medical advice or delay seeking it because of something you have read on SleepCycle.tools.

If you experience persistent sleep issues, please consult with a healthcare professional.

6. Limitation of Liability

To the maximum extent permitted by law, SleepCycle.tools, its owners, employees, and affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including without limitation, loss of profits, data, use, goodwill, or other intangible losses, resulting from:

  • Your access to or use of or inability to access or use the Service
  • Any conduct or content of any third party on the Service
  • Any content obtained from the Service
  • Unauthorized access, use, or alteration of your transmissions or content

In no event shall SleepCycle.tools' total liability to you for all claims, damages, losses, liabilities, costs, and expenses exceed one hundred dollars ($100.00).

7. Third-Party Links

The Service may contain links to third-party websites or services that are not owned or controlled by SleepCycle.tools.

SleepCycle.tools has no control over, and assumes no responsibility for, the content, privacy policies, or practices of any third-party websites or services. You further acknowledge and agree that SleepCycle.tools shall not be responsible or liable, directly or indirectly, for any damage or loss caused or alleged to be caused by or in connection with the use of or reliance on any such content, goods, or services available on or through any such websites or services.

We strongly advise you to read the terms and conditions and privacy policies of any third-party websites or services that you visit.

8. Changes to Terms

SleepCycle.tools reserves the right to modify or replace these Terms of Use at any time. If a revision is material, we will provide at least 30 days' notice prior to any new terms taking effect. What constitutes a material change will be determined at our sole discretion.

By continuing to access or use our Service after any revisions become effective, you agree to be bound by the revised terms. If you do not agree to the new terms, you are no longer authorized to use the Service.

9. Governing Law

These Terms shall be governed and construed in accordance with the laws of the Czech Republic, without regard to its conflict of law provisions.

Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights. If any provision of these Terms is held to be invalid or unenforceable by a court, the remaining provisions of these Terms will remain in effect.

10. Contact Us

If you have any questions about these Terms, please contact us: