About SleepMaply
Sleep tools that show you the picture, not just the number.
Most sleep calculators on the internet give you a single number in plain text — and look like they were designed in 2004. We started SleepMaply with a simple idea: your sleep deserves a dashboard.
Every tool here turns your answers into a visual result: a hypnogram of your night, a gauge of your sleep debt, a ring of your nap's phases, a timeline of caffeine in your body, a chart of sleep needs by age. The math is the same science you'd find anywhere — the difference is that you can see it.
Our principles
- Visual first. If a result can be drawn, we draw it.
- Private by design. Every calculation runs in your browser. Nothing you type is sent anywhere, stored anywhere, or sold to anyone.
- Free, no accounts. No signups, no paywalls, no "premium nap lengths."
- Honest math. Each tool shows how it calculates, with real sources like National Sleep Foundation guidelines.
A note on health
SleepMaply is an educational tool, not a medical device. Our calculators give general information based on widely published sleep science. If you snore loudly, stop breathing in your sleep, or feel exhausted despite full nights, please talk to a doctor or sleep specialist.