A babydoll is a short, sometimes sleeveless, loose fitting nightgown or negligee intended as nightwear for women. It sometimes has formed cups called a Bralette for cleavage with an attached loose fitting skirt falling in length between the hips and the belly button.
The term chemise or shift can refer to the classic smock, or else can refer to certain modern types of women's undergarments and dresses. In the classical usage it is a simple garment worn next to the skin to protect clothing from sweat and body oils, the precursor to the modern shirts commonly worn in Western nations.