What is the main setting in the poem, The Lady’s Dressing Room?

The poem primarily takes place in Celia's dressing-room. There is no detail about how it is decorated, but readers are told what it contains: a mirror, a basin used for washing, various cloths and clothes, towels, and a chest that is used as a chamberpot. This space is in complete disarray, and it is indeed filthy – but it is also a private place that is being invaded by someone who does not belong.