If you never felt you quite fit into the "morning person" or "evening person" mold, you may have been on to something.
New research published in the journal Personality and Individual Differences identifies two new personality types to describe people's level of alertness throughout the day.
The researchers call them the "napper" and "afternoon" chronotypes.
To come to this conclusion, a team of sleep experts from Russia and Belgium asked 1,305 people to take part in a short online survey.
Here's what the researchers found: First, they replicated the familiar "morning" and "evening" personality types.
Evening types, on the other hand, are considerably more tired than morning types when they wake up—but not as tired as afternoon types.
The authors conclude, "Evidence is gradually accumulating in favor of distinguishing at least four rather than two distinct chronotypes. »
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