Terms of Service

    Please read these Terms of Service carefully before using SnapSleepCalc.

    Last updated: January 2026

    1. Overview & Terms Summary

    SnapSleepCalc is a free, browser-based sleep calculator and educational resource. All calculations and content are provided for informational and educational purposes only and do not constitute medical advice.

    By accessing or using SnapSleepCalc, you agree to be bound by these Terms of Service.

    2. Definitions

    2.1. "Service" refers to the SnapSleepCalc website, sleep calculators, educational articles, tools, and all related functionality.

    2.2. "User", "you", or "your" refers to any individual accessing or using the Service.

    2.3. "We", "us", or "our" refers to SnapSleepCalc and its operators.

    2.4. "Content" refers to all text, calculations, explanations, graphics, design elements, and informational materials provided through the Service.

    3. Acceptance of Terms

    3.1. By accessing or using the Service, you confirm that you have read, understood, and agree to these Terms.

    3.2. If you do not agree with these Terms, you must immediately stop using the Service.

    3.3. We reserve the right to update or modify these Terms at any time. Continued use of the Service after changes constitutes acceptance of the revised Terms.

    3.4. It is your responsibility to review these Terms periodically.

    4. Description of the Service

    4.1. SnapSleepCalc provides tools that calculate suggested sleep and wake times based on widely accepted sleep cycle models.

    4.2. Calculations are based on:

    • An average sleep cycle length of approximately 90 minutes
    • An estimated 14-minute sleep onset period

    4.3. The Service also includes educational content related to sleep science, sleep cycles, and general sleep hygiene.

    4.4. SnapSleepCalc does not track sleep, monitor health metrics, diagnose conditions, or provide personalized medical assessments.

    4.5. The Service is provided free of charge and without advertisements.

    5. Medical Disclaimer

    5.1. The Service is not medical advice and must not be treated as such.

    5.2. SnapSleepCalc does not provide medical diagnosis, treatment, or professional health recommendations.

    5.3. Sleep needs vary between individuals. All calculations and recommendations are based on population averages and may not be suitable for everyone.

    5.4. Always consult a qualified healthcare professional regarding sleep disorders, health conditions, or medical concerns.

    5.5. Do not delay or disregard professional medical advice because of information obtained through the Service.

    6. User Obligations

    6.1. You agree to use the Service only for lawful purposes.

    6.2. You may not attempt to disrupt, damage, overload, or interfere with the proper functioning of the Service.

    6.3. You may not attempt to gain unauthorized access to any part of the Service or related systems.

    6.4. Automated access (including bots, scrapers, or crawlers) is prohibited without prior written permission.

    6.5. The Service may not be used for commercial purposes without explicit written consent.

    7. Intellectual Property

    7.1. All Content and functionality are the exclusive property of SnapSleepCalc and are protected by applicable intellectual property laws.

    7.2. You may not copy, reproduce, distribute, modify, or create derivative works from any Content without prior written permission.

    7.3. You are granted a limited, non-exclusive, non-transferable license to use the Service for personal, non-commercial purposes only.

    7.4. The SnapSleepCalc name, branding, and logo are protected trademarks and may not be used without authorization.

    8. Privacy & Data Handling

    8.1. Your use of the Service is governed by our Privacy Policy, which is incorporated into these Terms by reference.

    8.2. All sleep calculations are performed entirely in your browser.

    8.3. We do not collect, store, or transmit the sleep times or inputs you enter into the calculator.

    8.4. Any analytics or technical data collection is described transparently in our Privacy and Cookie Policies.

    9. Service Availability

    9.1. We aim to keep the Service available at all times but do not guarantee uninterrupted or error-free operation.

    9.2. We reserve the right to modify, suspend, or discontinue the Service or any part of it at any time.

    9.3. Temporary downtime may occur due to maintenance or technical reasons.

    9.4. We are not liable for losses resulting from Service interruptions or changes.

    10. Disclaimer of Warranties

    10.1. The Service is provided "as is" and "as available".

    10.2. We make no warranties regarding accuracy, reliability, security, or suitability for any particular purpose.

    10.3. We disclaim all implied warranties, including merchantability, fitness for a particular purpose, and non-infringement.

    11. Limitation of Liability

    11.1. To the maximum extent permitted by law, SnapSleepCalc shall not be liable for any indirect, incidental, consequential, or punitive damages.

    11.2. This includes, but is not limited to, loss of data, health outcomes, profits, or other intangible losses.

    11.3. Our total liability for any claims related to the Service shall not exceed the amount paid by you for the Service, which is zero, as the Service is free.

    11.4. Some jurisdictions do not allow certain liability limitations, so portions of this section may not apply to you.

    12. Indemnification

    You agree to indemnify and hold harmless SnapSleepCalc and its operators from any claims, damages, or expenses arising from:

    • Your use of the Service
    • Your violation of these Terms
    • Your violation of applicable laws or third-party rights

    13. Governing Law & Dispute Resolution

    13.1. These Terms are governed by applicable laws without regard to conflict-of-law principles.

    13.2. Any disputes shall first be attempted resolved through good-faith negotiation.

    13.3. If unresolved, disputes may be handled through arbitration or courts of competent jurisdiction.

    14. Severability

    14.1. If any provision of these Terms is found unenforceable, the remaining provisions remain fully effective.

    14.2. Any invalid provision shall be modified minimally to preserve its original intent.

    15. Entire Agreement

    15.1. These Terms, together with our Privacy Policy and Cookie Policy, constitute the entire agreement between you and SnapSleepCalc.

    15.2. They supersede any prior agreements or understandings.

    16. Contact Information

    For questions regarding these Terms:

    📧 Email: snapsleepcalc@gmail.com

    ⏱️ We aim to respond within 3–5 business days