The early bird may get the worm, but a new poll suggests that ‘larks' have a lot more in common than that.

A look into the sleep habits of 2,000 Americans revealed some interesting differences between those who stay up late and those who rise early—from their personality traits to their hobbies, and even their beliefs.

The survey, which was conducted by OnePoll on behalf of Sleepopolis in advance of World Sleep Day on March 15th, questioned an equal number of participants who were self-described as either early birds and night owls.

The survey found that the morning larks, on average, are energetic and confident, enjoy cooking, and, surprisingly, arrive late for work more often than others!

In contrast to their morning counterparts, night owls were shown to be more shy and sarcastic. They were also found to be more likely to use Instagram and to believe in ghosts.

Further research showed that night owls are more likely to be single, whereas early birds believed in love at first sight, and were more likely to be married and have children living in the house. This may be because early birds were also more likely to have tried online dating.

Early birds were found to earn more money and be more likely to work in an office (albeit showing up late).

Additionally, early birds were 10% more likely to identify as "happy", while night owls identified more strongly as "loyal".

Those who consider themselves early birds were found to have more active hobbies. In contrast to being more likely to enjoy walking, hiking, playing sports, and exercising in a gym, hobbies for night owls, such as reading and sleeping, were more laid-back.

There wasn't a major difference in the amount of sleep people received – an average of six hours a night for night owls and seven hours for early birds – but the survey did find some interesting differences in how we sleep.

Early birds were more likely to be light sleepers and always feel well-rested in the morning. They were more likely to identify as clean and organized, and it shows—early birds were more likely to make their bed in the morning than night owls. They were also more likely to dream, and to always remember their dreams upon waking.

Night owls were more likely to have trouble falling asleep, and then perhaps unsurprisingly, were less likely to report high-quality sleep.

Early-risers were more likely to talk, snore and move around in their sleep, and were also more likely to prefer sleeping with music on or a window open.

On the other hand, night owls were more likely to prefer having a fan on, and enjoyed sleeping with a pet or a significant other in the bed with them.

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