Our Mission
Science-Based Sleep Tools,
Free for Everyone
We build free, science-based sleep tools that help millions of people worldwide get better sleep. No ads that manipulate you. No sign-ups. No paywalls. Just accurate, research-backed calculators and guides you can trust.
What We Do — and Why
Sleep is one of the most important pillars of human health — yet most people have never been given the tools to understand or optimize it. We built bedtimecalc.net to change that.
Our calculators are grounded in sleep science: 90-minute cycle theory, circadian rhythm research, CDC and NHS guidelines, and peer-reviewed literature from the National Institutes of Health. Every recommendation we show you has a scientific basis we can point to.
We operate without advertising that would distort our advice, without email marketing that would exploit your data, and without subscription gates that would make better sleep a luxury. Every tool on this site is free, fast, and private.
When you use our sleep calculator, your preferences stay on your device in localStorage. We do not see them. We do not want them. Our job is to give you the answer and get out of the way.
Our Principles
Evidence First
Every claim cites a primary source: CDC, NHS, NIH, AASM, or a peer-reviewed journal. We do not publish health claims we cannot back up.
Privacy by Default
We collect no personal data. Calculator preferences are stored locally in your browser. Analytics only run with your explicit consent.
Free Forever
Our tools are free for personal use with no time limits, no feature tiers, and no hidden costs. Better sleep is a right, not a subscription.
Honest Limitations
Our calculators are educational tools, not medical devices. We are transparent when individual variation matters and when you should see a doctor.
Editorial Standards
All content published on bedtimecalc.net goes through a structured research and review process. We do not publish AI-generated content that has not been reviewed against primary sources. We do not accept sponsored content that could bias our recommendations.
Sources We Cite
- CDC (Centers for Disease Control and Prevention) — sleep duration recommendations by age, public health data on sleep insufficiency.
- NHS (National Health Service, UK) — clinical guidance on sleep, insomnia, and sleep disorders.
- American Academy of Sleep Medicine (AASM) — clinical practice guidelines, diagnostic criteria, and professional consensus statements.
- Sleep Foundation — evidence-based sleep education, reviewed by board-certified sleep physicians.
- NIH / PubMed — peer-reviewed research on sleep physiology, circadian rhythms, sleep stages, and sleep health outcomes.
- National Sleep Foundation — age-specific sleep time recommendations and sleep health surveys.
Error Correction
If you find an error in our content — factual, typographical, or a broken calculation — please email us at guptaaryan583@gmail.com. We investigate all corrections and update content promptly when errors are confirmed. Significant corrections are noted at the bottom of the relevant article.
For our full editorial policy, including how we research, write, and review content, see our Editorial Policy page.
Our Primary Data Sources
| Organization | What We Use It For | Type |
|---|---|---|
| CDC | Sleep duration guidelines by age, sleep health statistics | Government |
| NHS | Clinical sleep guidance, insomnia management | Government |
| AASM | Sleep stage definitions, clinical practice guidelines | Medical Society |
| Sleep Foundation | Consumer-facing sleep education, physician-reviewed | Research Org |
| NIH / PubMed | Primary research on sleep physiology and health outcomes | Research |
| National Sleep Foundation | Sleep duration consensus panels, annual Sleep in America polls | Research Org |
The Team
bedtimecalc.net is built by sleep enthusiasts and health-focused developers who became frustrated with the state of online sleep information. Too much of it is SEO-driven fluff, upselling supplements, or buried behind paywalls.
We are not a hospital, a clinic, or a sleep lab. We are people who care about sleep science and know how to build fast, accurate, privacy-respecting tools. Our calculators are reviewed against the same primary literature we cite — and when the science is contested or individual variation is high, we say so.
We do not have medical credentials, which is why we do not diagnose or treat sleep disorders. We give you the numbers and the science; your doctor gives you the diagnosis.
Contact Us
Questions, error reports, corrections, or feedback — we read every email.
guptaaryan583@gmail.comExplore Our Tools
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