A nightdress, also known as a nightgown or nightie, is a loose-fitting garment typically worn by women while sleeping or lounging in bed. It is designed to be comfortable and allow for ease of movement during sleep. Nightdress can vary in style, length, and fabric, ranging from short and sleeveless to long and flowing.

Nightdresses are often made from lightweight and breathable materials such as cotton, silk, satin, or synthetic blends. They can feature various designs, including patterns, lace accents, and decorative trims. Some nightdresses have adjustable straps or come with matching robes or dressing gowns.

Nightdresses are popular choices for sleepwear because they provide a comfortable alternative to pajamas or nightshirts. They offer a feminine and often more elegant look, making them suitable for both sleeping and relaxing at home. Nightdresses are available in different sizes and styles to suit personal preferences and body types.