Another word for nursery

You've had the nursery ready for him a long time.

He went on tiptoe to the nursery door and opened it.

One of the girls who watched the babies in the nursery was ill that morning, so Carmen volunteered to help.

Mrs. Keller and I watched the nursery comedy from the door.

The brilliant success of Humperdinck's Hansel and Gretel, in which Wagnerian technique is applied to the diatonic style of nursery songs with a humorous accuracy undreamed of by Wagner's imitators, points a moral which would have charmed Wagner himself; but until the revival of some rudiments of musical common sense becomes widespread, there is little prospect of the influence of Wagner's harmonic style being productive of anything better than nonsense.