嫌 Sleep Time Calculator

Discover how much of your life you've spent sleeping and learn interesting sleep facts!

Enter your information to see your sleep statistics!

Did you know?

Giraffes sleep only 30 minutes to 2 hours per day, while koalas sleep up to 20 hours daily!

About the sleep calculator

How it works

The calculator multiplies the days since your birth date by your average nightly sleep to estimate total hours, days and years spent asleep, and the share of your life that represents.

How much sleep do you need?

A typical night cycles through light, deep and REM sleep in roughly 90-minute cycles.

Better sleep habits

Keep a consistent schedule, limit screens and caffeine late in the day, and keep your bedroom cool, dark and quiet.