잤나

did ... sleep?

→ 자다
잤 Past tense + 나 question ending
verb · informal, past tense Uncommon #10,519
did ... sleep? An informal question form.
KO: 어젯밤에 잘 잤나?
EN: Did you sleep well last night?
Conjugation of 자다
Past

밤에 통 못 잤나?

Did you not get any sleep at all last night?

— 오펜하이머 (2023)

잘들 잤나?

Did you sleep well?

— 아모레스 페로스 (2000)

응, 방에서 안 잤나 봐

Yeah, I guess they didn’t sleep in the room.

— 아메리카의 밤 (1973)

비서 랑 잤나?

Did you sleep with your secretary?

— 나우 유 씨 미 3 (2025)

어제 잠을 잘 못 잤나 봐요

I guess I didn’t sleep well last night.

— 아멜리에 (2001)

내가 얼마나 잤나?

How much did I sleep?

— 희생 (1986)

그 여자와 잤나?

Did you sleep with that woman?

— 이탈자 (1990)

야 푹 잤나?

Hey, did you sleep well?

— 마더 (2009)