Sleeping lightly or intermittently; taking short naps while partially awake.
First recorded in the 17th century, possibly from Danish 'døse' or Norwegian 'dusa' meaning to doze. The word captures the state between waking and sleeping that's lighter than deep sleep.
Power napping or dozing for 10-20 minutes can actually boost alertness and cognitive performance more effectively than longer naps, which risk entering deep sleep and causing grogginess upon waking.
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