noun
feigned sleep; pretending to be asleep
Refers to the act of pretending to be asleep, often to avoid interaction or to deceive someone.
子供は怒られるのが嫌で空眠りをした。
The child pretended to be asleep to avoid being scolded.
彼女が部屋に入ってきたとき、彼は空眠りを決め込んだ。
When she entered the room, he decided to feign sleep.