What keeps you up at night?

What keeps you up at night? 왜 잠 잘 못잔거야? 뭐 때문에 못자는거야?

Why haven't you been able to sleep? Why can't you sleep well these days?
What is worrying you? What is preventing you from relaxing?

A: You always look so happy!
B: Yeah, thanks. But you.. What keeps you up at night?
A: Oh, everything! My job, my bills...money!
B: I wish I could help~~

A: 너 요즘 행복해보여!
B: 응, 고마워. 그치만 너... 요즘 왜 잘 못자는거야? 
A: 이런, 전부다! 직장, 청구서... 돈때문이지!
A: 내가 도울수 있으면 좋을텐데~~