β οΈ Medical Disclaimer
Important information about using SmartSleepCalc.com tools and content. Please read before using any calculator or guide on this site.
The calculators, guides, and information on SmartSleepCalc.com are FOR EDUCATIONAL AND INFORMATIONAL PURPOSES ONLY. They are NOT intended to diagnose, treat, cure, or prevent any disease or medical condition. This site has not been reviewed by a licensed medical professional. Our tools DO NOT replace professional medical advice, diagnosis, or treatment from qualified healthcare providers. Never use these tools to self-diagnose or delay seeking professional medical care.
1 Not Medical Advice or Diagnosis
SmartSleepCalc.com is an educational website built and maintained by an independent researcher β not a licensed healthcare professional. All content, including calculators, articles, and guides, is for general informational purposes only.
Our Tools Are NOT
- Medical advice or personalised recommendations
- Professional diagnosis of sleep disorders or medical conditions
- Treatment plans from healthcare providers
- Emergency or urgent medical assistance
- Prescription guidance or medication advice
Our Tools ARE
- Free educational tools based on peer-reviewed research
- Population-average timing estimates for sleep scheduling
- Reference aids you can bring to a healthcare appointment
- Fact-checked against cited primary sources
- A starting point for a conversation with your doctor
2 Always Consult a Healthcare Professional
Before making any health decisions based on information from this website, always consult with a qualified healthcare provider. This includes but is not limited to:
When to Seek Professional Guidance
- Starting or stopping medications (including over-the-counter sleep aids)
- Changing sleep schedules if you have medical conditions
- Interpreting results from screening questionnaires (PSQI, ISI, STOP-BANG)
- Addressing chronic sleep problems lasting more than 2β4 weeks
- Managing sleep issues related to mental health, pregnancy, or chronic illness
Qualified Healthcare Providers Include
- Sleep medicine specialists (board-certified in sleep disorders)
- Primary care physicians (family doctors, internists)
- Psychiatrists (for sleep-related mental health issues)
- Psychologists trained in CBT-I or sleep therapy
- Pulmonologists (for sleep apnea and breathing disorders)
3 Our Calculators Are Screening Tools Only
SmartSleepCalc.com provides calculators based on established peer-reviewed research. However, screening β diagnosis. Only a qualified healthcare provider can diagnose a sleep disorder through clinical examination, medical history, and diagnostic testing (polysomnography, sleep studies, blood work).
| Tool | What It Does | What It Does NOT Do | Risk Level |
|---|---|---|---|
| Sleep & Bedtime Calculator | Estimates bedtimes based on 90-min cycle averages (Kleitman 1953; NSF 2025) | Does not account for your personal cycle length, health conditions, or medications | Low |
| Nap Calculator | Suggests nap windows based on sleep stage research (Rosekind 1995; Reyner & Horne 1997) | Does not diagnose excessive daytime sleepiness or underlying disorders | Low |
| Sleep Debt Calculator | Tracks weekly sleep deficit against NSF recommendations | Does not diagnose chronic sleep deprivation disorder or rule out medical causes | Medium |
| PSQI / ISI Screening | Validated questionnaire β high scores suggest poor sleep quality warranting evaluation | PSQI score >5 is not a diagnosis. Requires clinical assessment. Scores can be affected by many factors. | See a doctor |
| STOP-BANG Questionnaire | Screens for sleep apnea risk. High score warrants a formal sleep study. | Does not diagnose sleep apnea. Only a polysomnography (sleep study) can do that. | See a doctor |
| Chronotype Quiz | Describes natural sleep-wake timing preference based on Roenneberg chronotype research | Does not diagnose circadian rhythm disorder. Results are descriptive, not prescriptive. | Low |
4 Accuracy & Reliability
While we strive for accuracy using validated questionnaires and peer-reviewed research, we make no guarantees or warranties regarding the accuracy, completeness, or suitability of results for your specific situation.
Known Limitations of Our Tools
- Self-report bias: Results depend on honest, accurate self-assessment
- Individual variation: Adult sleep cycles range from ~70β120 min; tools use the 90-min population average
- Cultural differences: Sleep norms vary across cultures, age groups, and climates
- Comorbid conditions: Multiple health issues may affect result interpretation
- No objective measurement: We do not measure actual sleep β unlike a sleep study (polysomnography)
- Memory limitations: Questions about “the past month” rely on recall accuracy
No Guarantees On
- Accuracy of results for your specific circumstances
- Completeness of information for all sleep disorders
- Currency of content β medical research evolves
- Freedom from technical or calculation errors
- Suitability for your medical history or conditions
5 No Professional Credentials or Licensing
SmartSleepCalc.com is operated by an independent researcher and developer β not a licensed medical professional. This site has not been reviewed by a clinician.
- Medical degrees (MD, DO)
- Sleep medicine board certification (ABSM, CCSH)
- Psychology or psychiatry licences
- Clinical sleep specialist credentials (RPSGT, RST)
- Professional liability insurance for medical advice
Content is researched by Muzammal Shahzad Butt and is based on published peer-reviewed scientific literature. All statistics are cited to their primary sources. This does not make the content equivalent to clinical advice from a qualified practitioner.
6 Not a Substitute for Professional Medical Care
SmartSleepCalc.com does not provide any of the following β these require a licensed healthcare professional:
No doctorβpatient relationship
Using this site does not create a professional relationship with any healthcare provider.
No personalised treatment plans
Recommendations on this site are general information β not tailored to your medical history, medications, or conditions.
No prescription guidance
We cannot prescribe, recommend dosages, or advise on the use, adjustment, or discontinuation of any medication.
No medical monitoring
We do not track your health status, follow up on your progress, or provide ongoing care of any kind.
No second opinions
Our tools cannot confirm, support, or refute any professional medical diagnosis.
No emergency assistance
We are not equipped or staffed to handle medical emergencies. See Section 7 for emergency guidance.
7 Medical Emergencies
π¨ If You Are Experiencing a Medical Emergency
Do not rely on this website for emergency medical assistance. We are not staffed, equipped, or able to respond to emergencies of any kind.
Seek Immediate Emergency Care For
- Severe breathing difficulties during sleep (gasping, choking, long pauses)
- Chest pain or pressure associated with sleep problems
- Suicidal thoughts related to sleep deprivation or insomnia
- Violent behaviours during sleep (suspected REM behaviour disorder)
- Severe hallucinations related to sleep deprivation
- Cardiac arrhythmias (irregular heartbeat) during or around sleep
Contact Your Doctor Within 24β48 Hours If
- Sleep apnea screening (STOP-BANG) indicates high risk
- Insomnia severity (ISI) score indicates severe insomnia (score β₯22)
- Sleep quality (PSQI) indicates severe disturbance (score β₯16)
- New or worsening daytime sleepiness affecting safety (driving, work)
- Chronic sleep problems lasting more than 3 months
- Any symptom causing significant distress or functional impairment
8 Children, Pregnancy & Special Populations
Certain groups have specific sleep needs that our general-population tools are not designed for. Extra caution and professional guidance are particularly important for:
Children Under 18
Most calculators are designed for adults. Children and teens have different sleep needs, cycle lengths, and disorders. Consult a paediatrician or paediatric sleep specialist.
Pregnancy & Postpartum
Sleep changes dramatically during and after pregnancy. Our calculators do not account for pregnancy-related disturbances. Consult your OB-GYN or midwife.
Adults 65+
Higher baseline risk of sleep disorders. Sleep architecture changes significantly with age. Medical supervision is especially important in this group.
Chronic Illness
Heart disease, diabetes, COPD, and kidney disease all affect sleep. Our tools do not account for these conditions. Always consult your managing physician.
Mental Health Conditions
Depression, anxiety, PTSD, and bipolar disorder have strong bidirectional relationships with sleep. Integrated professional treatment is required β not a sleep calculator.
Medication Users
Many drugs β including antidepressants, blood pressure medications, antihistamines, and steroids β significantly affect sleep. Consult your prescribing doctor before adjusting sleep schedules.
9 No Guarantee of Results
We make no guarantees, warranties, or promises regarding:
- Improvement in sleep quality from following suggestions on this site
- Accuracy of sleep cycle predictions or chronotype assessments for your specific biology
- Resolution of sleep problems through sleep hygiene recommendations
- Prevention of any health consequences related to poor sleep
- Success rate of any techniques or strategies mentioned
Individual results vary based on genetics, health status, medications, lifestyle, environment, age, and adherence to any professional treatment plan. What works for the population average described in research may not work the same way for you as an individual.
10 Third-Party Links & Resources
SmartSleepCalc.com may contain links to third-party websites for reference or convenience. We do not endorse, control, or assume responsibility for the content, accuracy, privacy practices, products, or services of any external site.
Affiliate links on this site are clearly labelled and disclosed. Affiliate relationships have no influence on what information is published or which sources are cited. Full details: Affiliate Disclosure β
11 Limitation of Liability
- SmartSleepCalc.com, its owner, operator, and contributors are not liable for any direct, indirect, incidental, consequential, or punitive damages arising from use of this website or its calculators
- This includes but is not limited to: misinterpretation of results, delayed medical treatment, adverse health outcomes, or any harm resulting from reliance on content from this site
- You assume full personal responsibility for any decisions made based on information from SmartSleepCalc.com
- We are not responsible for technical errors, calculation inaccuracies, or content that becomes outdated after publication
12 Updates to This Disclaimer
We reserve the right to update this medical disclaimer at any time. Changes will be reflected in the “Last Updated” date at the top of this page. Continued use of SmartSleepCalc.com after any update constitutes acceptance of the revised disclaimer.
It is your responsibility to review this disclaimer periodically. If you have questions about this disclaimer, contact us at the contact form β