居眠り
いねむり · inemuri · JLPT N3 · noun
dozing
🪑💤 居眠り = being present (居) + sleep (眠り): asleep while still in your seat
居 (i) means to be somewhere or stay put, and 眠り (nemuri) means sleep. So inemuri is sleeping while you are still where you are meant to be: at your desk, in a meeting, or on the train.