Akademik

n.

A brief period (usually only a few seconds) in which the brain enters a sleep state regardless of the activity the person is performing at the time.

"If we ignore sleep needs and get behind the wheel of a car, a catastrophe can happen. It only takes a few seconds — just long enough for a tired body to steal needed 'microsleep' — to run off the road or into an oncoming car."

— Jaine Carter and James D. Carter, "Everyone Must Cope with Sleep Problems," Scripps Howard News Service, April 18, 1999