Terms of Use – SmartSleepCalc.com

01 Acceptance of Terms

These Terms of Use (“Terms”) form a legally binding agreement between you (“User”, “you”, “your”) and SmartSleepCalc (“we”, “us”, “our”), the operator of smartsleepcalc.com and all associated subpages, tools, and content.

By accessing, browsing, or using any part of this website — including any sleep calculator tool, article, or downloadable resource — you acknowledge that you have read and agree to these Terms in full. If you are under 13 years of age, you may not use this website. Users aged 13–17 must have parental or guardian consent.

02 Services Description

SmartSleepCalc.com provides free, browser-based sleep science tools and educational content. Our current and planned services include:

• Bedtime Calculator — optimal bedtimes based on 90-minute sleep cycles
• Wake-Up Time Calculator — best wake times from a given bedtime
• Nap Calculator — full-cycle and power nap wake times
• Power Nap Calculator — 10, 20, and 30-minute nap timers
• Sleep Debt Calculator — cumulative sleep deficit tracking
• Sleep Cycle Calculator — full NREM/REM cycle breakdowns
• Baby Nap Calculator — age-specific infant sleep schedules
• Educational blog articles on sleep science, health, and wellness

All tools operate entirely within your browser. We do not store your input data on our servers. We reserve the right to add, modify, or discontinue any service at any time without prior notice.

03 Medical Disclaimer

SmartSleepCalc.com is not a medical service. All sleep calculations, recommendations, and educational content provided on this website are based on published sleep science research, including American Academy of Sleep Medicine (AASM) 2016 guidelines and the sleep cycle model established by Kleitman (1953) and updated by Carskadon & Dement (2011).

This information is provided for general informational and educational purposes only. It does not constitute:

• Medical advice, diagnosis, or treatment recommendations
• A substitute for professional medical consultation
• A personalised health plan for any individual’s specific condition
• Clinical guidance for sleep disorders such as insomnia, sleep apnoea, or narcolepsy

Individual sleep needs vary based on age, health status, medications, lifestyle, and genetics. Our tools calculate results based on population averages and may not be appropriate for every individual.

04 Permitted Use

We grant you a limited, non-exclusive, non-transferable, revocable licence to access and use SmartSleepCalc.com for personal, non-commercial purposes only.

• Use all calculator tools freely for personal sleep planning
• Read and share links to our educational articles
• Print calculator results or article excerpts for personal reference
• Embed a link to our tools on your personal blog or website with attribution
• Cite our content in academic or personal writing with a proper source link

05 Prohibited Use

You may not use this website to:

• Copy, reproduce, republish, or redistribute our tools, code, or content commercially without written permission
• Scrape, crawl, or automatically harvest data from our website using bots or scripts without prior written consent
• Attempt to reverse-engineer, decompile, or extract source code from our calculator tools
• Introduce malware, viruses, or any harmful code to our systems
• Use our website in any way that violates applicable local, national, or international laws or regulations
• Impersonate SmartSleepCalc, our team, or any other person or entity
• Use our content to build a competing service without explicit written permission
• Attempt to gain unauthorised access to any part of our website or servers
• Frame or mirror any portion of our website on another site without consent

06 Intellectual Property

All content on SmartSleepCalc.com — including but not limited to calculator tools, JavaScript code, HTML/CSS design, written articles, graphics, logos, schema markup, and user interface elements — is the exclusive intellectual property of SmartSleepCalc and is protected by applicable copyright, trademark, and intellectual property laws.

The sleep cycle calculation methodology, tool designs, and editorial content are original works. Unauthorised reproduction, distribution, or commercial use of any part of this website is strictly prohibited and may result in legal action.

07 Accuracy of Information

We make every effort to ensure that all sleep calculations and educational content on this website are accurate, current, and based on credible sleep science research. All content is reviewed by our sleep health editorial team, including Dr. Sarah Mitchell (CCSH), a Certified Clinical Sleep Health Specialist.

However, we do not warrant that all information is error-free, complete, or up to date at all times. Sleep science research evolves continuously, and some content may not reflect the most recent findings. We review and update our content regularly — each page displays a “Last Reviewed” date.

Calculator results are based on the standard 90-minute sleep cycle model and population-average sleep latency figures. Your actual sleep patterns may differ. Results should be used as a starting point, not a strict prescription.

08 Disclaimer of Warranties

SmartSleepCalc.com is provided on an “as is” and “as available” basis without any warranties of any kind, either express or implied, to the fullest extent permitted by applicable law.

We specifically disclaim all warranties including:

• Merchantability and fitness for a particular purpose
• Accuracy, reliability, or completeness of any content or calculation
• Uninterrupted, timely, secure, or error-free operation of the website
• That results from our tools will be suitable for your individual health needs
• That the website is free from viruses or other harmful components

09 Limitation of Liability

To the maximum extent permitted by applicable law, SmartSleepCalc and its operators, contributors, reviewers, and affiliates shall not be liable for any direct, indirect, incidental, special, consequential, or punitive damages arising from:

• Your use of or inability to use this website or its tools
• Any health outcomes resulting from following calculator results or content
• Errors, inaccuracies, or omissions in content or calculations
• Interruption, suspension, or discontinuation of the website or any service
• Unauthorised access to or alteration of your data or transmissions
• Any third-party content, websites, or services linked from this website

Our total aggregate liability to you for any claims arising from use of this website shall not exceed $100 USD, regardless of the cause of action.

10 Indemnification

You agree to defend, indemnify, and hold harmless SmartSleepCalc, its operators, contributors, and affiliates from and against any claims, liabilities, damages, losses, costs, and expenses (including reasonable legal fees) arising from:

• Your use of or access to this website
• Your violation of any provision of these Terms
• Your violation of any third-party rights, including intellectual property rights
• Any content you submit or share in connection with this website

11 Privacy & Cookies

Your privacy is important to us. Our full Privacy Policy describes how we collect, use, and protect your information and is incorporated into these Terms by reference.

• No personal data collected: Our calculator tools run entirely in your browser. We do not collect, store, or transmit any sleep data you enter into our tools
• Analytics: We use privacy-respecting analytics (e.g., aggregated page views) to understand how our tools are used and improve them
• Cookies: We may use essential cookies for website functionality. No third-party tracking cookies are used without your consent
• No account required: We do not require you to create an account to use any tool on this website
• No data selling: We do not sell, rent, or share your personal data with third parties for marketing purposes

12 Third-Party Links

SmartSleepCalc.com may contain links to third-party websites, research studies, organisations, or products for informational purposes. These links are provided as a convenience only.

We do not endorse, control, or assume responsibility for the content, privacy practices, or accuracy of any third-party website. Visiting linked sites is at your own risk and subject to their respective terms and privacy policies.

Some pages may contain affiliate links. If you click an affiliate link and make a purchase, we may earn a small commission at no extra cost to you. All affiliate relationships are disclosed in accordance with FTC guidelines.

13 Changes to These Terms

We reserve the right to update or modify these Terms at any time. When we make material changes, we will update the “Last Updated” date at the top of this page. For significant changes, we may also display a notice on the homepage or key tool pages.

Your continued use of SmartSleepCalc.com after any changes are posted constitutes your acceptance of the revised Terms. We encourage you to review this page periodically. Previous versions are available upon request.

14 Governing Law & Disputes

These Terms shall be governed by and construed in accordance with applicable law. Any disputes arising from your use of this website shall first be attempted to be resolved through good-faith negotiation. If a resolution cannot be reached informally within 30 days, disputes may be submitted to binding arbitration or the relevant courts of jurisdiction.

If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions shall continue in full force and effect. These Terms, together with our Privacy Policy, constitute the entire agreement between you and SmartSleepCalc regarding use of this website.

15 Contact Us

If you have any questions, concerns, or requests regarding these Terms of Use, please contact us through any of the following: