retiring room

plural retiring rooms

1. A room set aside for seclusion, rest or quiet.

   But why cannot women—and mothers especially—have their own retiring room of the kind I remember some years ago finding such a pleasant surprise on a Kings Cross -Edinburgh train?

   1964 July, Mary Allen, “A Woman's View of the New Coaches”, in Modern Railways, page 9

   1 more example

   Wolferton was an important station on the Kings Lynn-Hunstanton line, which closed in 1969. As the station was convenient for the Sandringham estate, it was regularly patronised by royalty, and royal retiring rooms were provided.

   2022 December 14, Robin Leleux, “A royal occasion as heritage projects honoured: Wolferton”, in RAIL, number 972, page 61