Take to (one's) bed

Translation of "take to (one's) bed" into Russian

слечь в постель

After catching a cold, she had to take to her bed for a few days.

После того, как она простудилась, ей пришлось несколько дней провести в постели.

To go to bed, usually because of illness, exhaustion, or emotional distress, and often with the implication of staying there for an extended period.