About

Sleep science, organized so you don't have to.

SnoozeMetrics turns published sleep research into free, plain-English tools and guides — starting with the science of the 90-minute sleep cycle.

What this site is

SnoozeMetrics is a small, independent site in the sleep and wellness space. The idea is simple: pair genuinely useful tools — calculators for bedtime, naps, jet lag and caffeine — with clearly sourced guides that explain the science behind them.

Every science article cites its sources. When an article says "studies show" or "according to the Sleep Foundation," there is a real reference behind it, linked at the bottom of the page. We don't invent statistics and we don't dress up opinion as fact.

Who writes it

SnoozeMetrics Editorial

Research desk, SnoozeMetrics

Articles are researched from medical and scientific sources — the Sleep Foundation, the NHS, the CDC and studies indexed by the National Library of Medicine — drafted with AI assistance, checked by automated quality gates, and read and approved by a human before publication. Nobody here is a doctor, and nothing here is medical advice. The full process, including what we never do, is on the How we produce content page.

How we make money

SnoozeMetrics is free to use. Over time the site may earn through affiliate links (we earn a commission if you buy through some product links, at no extra cost to you) and display advertising. Recommendations are never for sale — see our Affiliate Disclosure for the full details.

A word on health

Sleep is a health topic, and the tools here are for general guidance, not diagnosis or treatment. If you're dealing with a persistent sleep problem, please talk to a qualified professional. See our Medical Disclaimer.

Got feedback, a correction, or a source we should cite? We'd genuinely like to hear it — reach us on the Contact page.