Sleep Duration
Your usual night against your country's average and the world's. Global mean is 7.0 hours; Finland tops the list at 7.3 and Japan is lowest at 6.3. Includes your yearly sleep debt.
Comparing to United States. Change country in the header. Countries without their own figure use the global one.
You sleep more than
56%
of app users in United States. Mean 6h 50m, SD 59 min.
United States avg
6h 50m
Global avg
7h 1m
Sleep distribution, United States
Seven hours or more, so no debt against the guideline. Over 80 years at this rate you would spend about 23.3 years asleep.
Japan and South Korea average under 6.5 hours, the least in the data. Finland and Norway lead at about 7.3. The whole spread between countries is under an hour, which is smaller than the spread between any two people in the same office.
In context
Wild elephants sleep about 2 hours a day, the least of any mammal measured. Little brown bats manage nearly 20. Humans, at 7 to 8, are mid-table, and unusual mainly in taking it in one block at night. Dolphins sleep one brain hemisphere at a time so they can keep surfacing. Your 7h is somewhere between the elephant and the bat, and nobody is sure yet why any of us need it.
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Look up a value: Is 7 hours of sleep normal? and other percentile lookups.
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About this test
Enter the hours you usually sleep. The module places you on a normal curve for your country, with means from Sleep Cycle's 2023 app data (not peer-reviewed, more than 10 million users) and SDs estimated from its spread. The global figure is 7.01 hours with SD 0.95.
Country means span about an hour. Finland sleeps 7.28 hours, Norway 7.27, the Netherlands 7.27, Denmark 7.26. The US is at 6.84, the UK 6.96, France 6.88. Japan (6.29) and South Korea (6.36) are the shortest sleepers in the set. App users skew younger and wealthier than the population, so treat the means as indicative.
How many hours of sleep is normal?
Around 7 hours a night for adults. The global mean in the module is 7.01 hours (Sleep Cycle, 2023), and the middle two thirds of people sleep between 6.1 and 7.9 hours. Grandner et al. (2016) and most health bodies recommend 7 to 9.
Is 6 hours of sleep enough?
Below what most adults need. Six hours is less than about 86% of people globally (mean 7.01, SD 0.95) and sits under the 7-hour floor recommended for adults. In Japan, where the mean is 6.29, six hours is close to typical.
Which country sleeps the least?
Japan, at 6.29 hours a night in Sleep Cycle's 2023 data, then South Korea at 6.36 and Saudi Arabia at 6.44. Finland, Norway and the Netherlands sleep the most at about 7.3. The gap between most and least is under an hour.
Percentiles above come from the same parameters the Sleep Duration module uses. See the methodology for how they are calculated.