noun, noun or participle which takes 'suru', intransitive verb
A somewhat literary or formal word for a midday nap. In everyday speech, 昼寝 (ひるね) is more common.
食後に軽い午睡をとると、午後の仕事がはかどる。
Taking a short nap after lunch helps with afternoon work.
He is taking a nap on the sofa.