The term ITEM OF SLEEPWEAR can be solved by the 7-letter word NIGHTIE. A NIGHTIE is a type of sleepwear, usually made of lightweight fabric such as cotton or silk, and is typically worn by women. It is a loose-fitting garment that is designed to be comfortable and allow for easy movement while sleeping. Nighties often feature lace or other decorative details, and may come in a variety of colors and styles.