寝ていた

was sleeping; was asleep, was in bed (ill)

→ 寝る
phrase Uncommon #9,031
was sleeping; was asleep Describes someone being asleep during a past period.
JA: このソファーで誰か寝ていた。
EN: Someone was sleeping on this sofa.

運転手は車の中で寝ていた。

The driver was sleeping in the car.

目が覚めてみると私は床の上で寝ていた。

When I woke up, I found myself lying on the floor.

そうでなければ、彼女は前の部屋で寝ていたはずだ。

Otherwise, she would have been sleeping in the room before.

目が覚めると私は床に寝ていた。

When I woke up, I was lying on the floor.

その犬はマットの上で寝ていた。

The dog was sleeping on the mat.

ほとんどずっと寝ていたんだから

I was asleep pretty much the whole time, after all.

このソファーで誰か寝ていた。

Someone had been sleeping on this sofa.

仲間がすべて寝ていた。

All my companions were asleep.

嵐の間ずっと寝ていた。

I slept through the entire storm.

バスの乗客はほとんど寝ていた。

Almost all the passengers on the bus were asleep.

私が訪ねた時彼は寝ていたが、起こしてやった。

When I visited him, he was asleep, but I woke him up.

目が覚めてみると私は床に寝ていた。

When I woke up, I found myself lying on the floor.

トムは寝ていた。

Tom was sleeping.

昨日は一日中寝ていた。

I slept all day yesterday.

私の犬は裏庭の木の下で寝ていた。

My dog was sleeping under the tree in the backyard.

私は昨日一日中寝ていた。

I slept all day yesterday.

目が覚めたら、足元に猫が寝ていた。

When I woke up, a cat was sleeping by my feet.

仕事に行かず一日中寝ていた。

I didn't go to work and slept all day.

電話が鳴った時、私はもう寝ていた。

When the phone rang, I was already asleep.

彼女達は寝ていた。

They were sleeping.

先生が教えている間に、生徒は寝ていた。

The student was sleeping while the teacher was teaching.

ドアを開けると彼が寝ていた。

When I opened the door, he was asleep.

phrase Rare #32,560
was in bed (ill) Describes someone who was confined to bed, often because of illness.
JA: 昨日、彼女は病気で寝ていた。
EN: Yesterday, she was in bed with an illness.

彼女は病気で何年も寝ていたような顔をしていた。

She looked as though she had been bedridden with an illness for years.

君は今日寝ていたほうがよさそうだ。

You’d better get some sleep today.

昨日は風邪を引いて寝ていた。

I caught a cold yesterday and stayed in bed.

体の具合がよくなかったので、彼は寝ていた。

He was sleeping because he wasn't feeling well.

昨日、彼女は病気で寝ていた。

She was sick in bed yesterday.