nightdress

[nahyt-dres] /ˈnaɪtˌdrɛs/

noun

a nightgown.

Origin

1705-15; night + dress

Examples from the web for nightdress

Her body shook as with a chill and her hands trembled so that she had difficulty getting into her nightdress.
When the body was recovered her face was found to be covered with her nightdress.
She propped herself on one elbow to look at him and was a moony whiteness in her nightdress on the sheets.
So, hastily throwing a loose gown over her nightdress, she hurried to the door.

British Dictionary definitions for nightdress

/ˈnaɪtˌdrɛs/

noun

(Brit) a loose dress worn in bed by women Also called nightgown, nightie