How sleep figures are chosen, how articles are put together, how often they're checked and what happens when we get something wrong.
| Stage | What happens |
|---|---|
| Topic | Chosen from questions parents actually ask: reader emails, common searches, and gaps next to the calculator (for example, what to do when a result says bedtime is earlier than your child can realistically manage). |
| Sources | Primary guidance first (AASM, AAP, NHS, Lullaby Trust for UK safe sleep), then peer-reviewed reviews. Each article ends with a sources box listing what it relied on. |
| Draft | Written for a tired parent reading on a phone. Specific claims (hours, ages, percentages) are only kept if a listed source supports them. |
| Check | Before publishing, every figure is compared against the calculator's own data so the site never contradicts itself, and every external link is opened. |
| Publish | With a publish date and a last-reviewed date in the byline and in the page's structured data. |
The calculator's data and every article are re-checked at least every six months, and sooner if the AASM, AAP or NHS revise their guidance. A review date only changes when the page has actually been re-checked, not when a typo is fixed.
Email hello@childsleepcalculator.com with "Correction" in the subject. We reply within two working days. Confirmed factual errors are fixed and the page's review date updated; if a correction changes advice (not just wording), a short note is added to the article saying what changed and when.
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Medical disclaimer: This site gives general information based on population-level guidance. It is not medical advice. If you are worried about your child's sleep, speak to your doctor, pediatrician or health visitor.