UP ALL NIGHT? Average bedtimes and hours slept by county

Are you a night owl compared to your neighbors?

A new study calculates the average bedtime and average hours slept in each county in the United States. Technology company JawBone put together the data by monitoring more than 1 million users of its wearable fitness bands.

As Jawbone points out, there are a few factors that might explain some of the data, besides just "These areas care more about sleep." Counties that are closer to time zone lines may be influenced by particularly early or late sunrises. According to Jawbone, the average difference in bedtime across the time zone border is 16 minutes.

In general, bigger cities had later bedtimes, while rural areas went to bed earlier.

Which area stayed up the latest? The study broke down the "City That Never Sleeps" into its boroughs, and Brooklyn wound up with an average bedtime later than any county in the country: 12:07 a.m.

But city-dwellers aren't sleeping in to accommodate for staying up late, the study found. Another map showed average amount of sleep in hours.

The National Heart, Lung and Blood Institute recommends that adults get 7-8 hours of sleep per night. No major city gets that, the study found.

American city-dwellers aren't the only ones who aren't catching enough zzzs, though. Jawbone also found that no world cities are hitting the 7-hour mark, either. Melbourne, Australia, came the closest, with an average of 6 hours and 56 minutes.