A nightgown, nightie or nightdress is a loosely hanging item of nightwear, today almost exclusively worn by women. A nightgown is made from cotton, silk, satin, or nylon and may be decorated with lace appliqués or embroidery at the bust and hem.A nightgown may have any neckline, and may have sleeves of any type, or be sleeveless, and any shoulder strap or back style. The length of a nightgown may vary from hip-length to floor-length. A short nightgown can be called a "shortie" or a "babydoll", depending on the style. The sweep (taper from top to bottom) of the night gown can vary from virtually straight, to full circle sweep, like the Olga gown. A slip nightgown may be used as a nightgown or as a full slip.