👉 A sleepcoat is a type of dress worn by male soldiers to protect their upper body from the elements during nighttime combat. It typically consists of a long, flowing robe that covers the entire upper body, including the head and shoulders. The garment is often made of lightweight fabrics such as cotton or polyester and has a hood or cap at the front, which protects the wearer's face and neck from the harsh sunlight. Sleepcoats are commonly worn by soldiers in the United States military during nighttime combat operations