FAQs About the word sleeplessness

수면장애

a temporary state in which you are unable (or unwilling) to sleep

불면증,초조함,경계,깨어 있는 상태

졸음,졸음,졸음병

sleeplessly => 잠들지 않고, sleepless person => 잠 못 이루는 사람, sleepless => 불면증, sleep-learning => 잠자는 동안 학습, sleepish => 졸린,