Author
F.A, Author and Editor
F.A writes, edits and keeps current the sleep guides, calculators, timers and health tools on BedtimeSleepCalculator.com. Based in the United States.
What F.A covers
Guides on 90 minute cycles, sleep by age, city and country pages, shift work and travel, the bedtime and wake up calculators, timers, and health tools such as BMI and calorie calculators. Every page follows the editorial policy.
How content is checked
Numbers are matched to published guidance such as National Sleep Foundation age recommendations, CDC sleep pages and the research listed on the about page. Methods are explained in the methodology.
Medical note: This site does not claim medical review. Results are estimates for general education. If you have ongoing sleep problems or a health condition, speak with a qualified healthcare professional. For evidence based medical information see CDC Sleep, NIH NHLBI, AASM Sleep Education and MedlinePlus.
Corrections
Found a mistake or an outdated figure? Send it through the contact page. It is checked, fixed and the page date is updated.
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