寝たの

Did you go to bed?

→ 寝る
phrase Common #3,176
Did you go to bed? A conversational question about when or whether someone lay down to sleep.
JA: いつ寝たの?
EN: When did you go to bed?

今朝は何時に寝たの?

What time did you go to bed this morning?

窓を開けたままで寝たの?

Did you sleep with the window open?

昨日の夜はいつ寝たの?

What time did you go to bed last night?

寝たの?

Did you sleep?

— ふたりのベロニカ (1991)

昨夜は何時に寝たの?

What time did you go to bed last night?

昨日は何時間寝たの?

How many hours did you sleep last night?

どこで寝たの?

Where did you sleep?

— 大人は判ってくれない (1959)

いつ寝たの?

What time did you go to sleep?

夜はちゃんと静かに寝たの?

Did you sleep quietly through the night?

昨日は何時に寝たの?

What time did you go to bed last night?

昨日、いつ寝たの?

What time did you go to bed yesterday?

窓開けっ放しで寝たの?

Did you sleep with the window open?

ええと…わからないよくわからないけど…アナベスは寝たの?

Um… I’m not sure, I really don’t know… Is Annabeth asleep?

— ミスティック・リバー (2003)