寝返る

彼は夜中に何度も寝返った。

He turned over in his sleep several times during the night.

赤ちゃんが自分で寝返るようになった。

The baby has started rolling over on its own.

狭いベッドでは寝返ることもできない。

In such a narrow bed you can't even turn over.

合戦の最中に有力な武将が敵に寝返った。

In the middle of the battle, a powerful general went over to the enemy.

派閥の議員が何人も対立候補の陣営に寝返った。

Several lawmakers from the faction defected to the rival candidate's camp.

信頼していた部下に寝返られて、社長は失脚した。

Betrayed by a subordinate he had trusted, the president lost his position.