Disclaimer

01 General Disclaimer

The information provided by SleepCycle Pro ("we," "us," or "our") on sleepcalculatortools.com, including all sleep calculations, schedules, quality scores, tips, and educational content, is for general informational and wellness purposes only. All information is provided in good faith based on published sleep science research, but we make no representation or warranty of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, availability, or completeness of any information.

02 Not Medical Advice

SleepCycle Pro is a wellness tool designed to provide general sleep schedule optimization guidance. It is NOT a medical device, clinical sleep analysis tool, or diagnostic instrument. Our Sleep Quality Score is a relative wellness indicator generated algorithmically — it is not equivalent to a clinical sleep study, polysomnography assessment, or professional sleep evaluation.

Always seek the advice of your physician, sleep specialist, or other qualified health provider with any questions you may have regarding a medical condition, sleep disorder, or before making any significant changes to your sleep schedule. Never disregard professional medical advice or delay in seeking it because of something you have read or calculated on this website.

If you think you may have a medical emergency or severe sleep disorder symptoms, call your doctor, go to the nearest emergency room, or call emergency services immediately.

03 Calculation Accuracy Limitations

Our sleep calculator uses a generalized 90-minute sleep cycle model based on published averages from peer-reviewed sleep science research. While this model is widely recognized in sleep medicine, it is important to understand the following inherent limitations:

• Individual Variation: Sleep cycle length varies from person to person and can range from 70 to 120 minutes — the 90-minute figure is a population median.
• Night-to-Night Variation: Even in the same individual, sleep cycle length varies between nights based on sleep pressure, circadian phase, and other factors.
• Sleep Latency Approximation: The sleep latency value (time to fall asleep) used in our calculations is self-reported and approximate. Actual sleep onset time varies.
• REM Estimates: Our REM and deep sleep duration estimates are based on typical population distributions and do not reflect your actual sleep architecture.
• Sleep Quality Score: This score is a relative, directional indicator only. It does not reflect actual EEG-measured sleep quality or clinical sleep parameters.
• Age Group Generalization: Sleep recommendations by age group are population-level guidelines. Individual needs within each age group vary significantly.

04 Factors Not Accounted For

Our sleep calculator does not account for the following factors that significantly influence individual sleep quality and optimal timing:

• Diagnosed sleep disorders (insomnia, sleep apnea, narcolepsy, REM sleep behavior disorder, restless legs syndrome)
• Prescription medications and their effects on sleep architecture and timing
• Mental health conditions including anxiety, depression, bipolar disorder, and PTSD
• Chronic pain conditions that disrupt sleep continuity
• Hormonal changes including pregnancy, menopause, and thyroid conditions
• Alcohol and substance use effects on sleep cycles
• Shift work disorder and chronic circadian rhythm disruption
• Jet lag and acute circadian phase disruption
• Genetic variations in sleep need (e.g., DEC2 short sleeper gene)
• Environmental factors including light, noise, temperature, and altitude

05 Who Should Not Rely on This Tool

While our tool is designed for general wellness use, the following individuals should exercise particular caution and consult healthcare professionals before relying on our recommendations:

• Individuals with diagnosed or suspected sleep disorders
• Healthcare professionals making clinical decisions for patients
• Individuals operating heavy machinery, aircraft, or vehicles where fatigue is a safety concern
• Individuals with occupational safety responsibilities (surgeons, pilots, air traffic controllers)
• Pregnant women or individuals in the postpartum period
• Individuals with cardiac conditions where sleep disruption could be hazardous
• Children under the supervision of parents or guardians for health decisions

06 Third-Party Advertising Disclaimer

Our website displays advertisements served by Google AdSense and potentially other third-party advertising networks. We are not responsible for the content of these advertisements, the accuracy of claims made in them, or the products and services advertised. Advertisements on our website do not constitute our endorsement of the advertised products, services, or organizations.

Third-party advertisers may collect data about your website visits and browsing behavior. This data collection is governed by the advertisers' own privacy policies, not our Privacy Policy. We recommend reviewing Google's advertising privacy policy at policies.google.com/privacy.

07 External Links Disclaimer

Our website may contain links to external websites and resources. These links are provided for informational purposes only. We have no control over the nature, content, and availability of those sites. The inclusion of any links does not necessarily imply a recommendation or endorsement of the views expressed within them.

We make no representations about the accuracy, reliability, or completeness of information on linked external websites. Accessing external links is entirely at your own risk, and we accept no responsibility or liability for any loss or damage that may arise from your use of external websites.

08 No Guarantee of Results

We make no guarantee that following our sleep schedule recommendations will produce any specific results, including but not limited to improved alertness, better mood, enhanced cognitive performance, improved athletic performance, or better overall health outcomes. Individual results will vary based on the numerous factors outlined in this Disclaimer.

Sleep optimization is a complex, highly individual process. Our tool provides a starting point based on established science, but the ideal sleep schedule for any individual may differ from our recommendations and can only be determined through personal experimentation, observation, and ideally, consultation with a sleep health professional.

09 Use at Your Own Risk

By using SleepCycle Pro, you acknowledge and agree that:

• You use the Service entirely at your own risk.
• We disclaim all warranties, express or implied, to the fullest extent permitted by law.
• You take sole responsibility for any decisions made based on our sleep recommendations.
• You will seek professional medical advice for any health concerns, including sleep health concerns.
• You understand the limitations of our generalized model as described in this Disclaimer.