Usage patterns
〈人〉が寝床に入るto get into bed
My grandmother gets into bed at nine o'clock.
〈人〉が寝床から出るto get out of bed
It's cold, so I don't want to get out of bed.
〈人〉が寝床を整えるto make one's bed
My mother makes my bed every morning.
〈人〉が寝床につくto retire to bed for the night
I was tired, so I went to bed early.