Boudoir Cap used to be worn as part of ladies’ nightwear. As it was popular nightwear, it was made from thin, light, and silky fabrics such as muslin or lace. The cap’s purpose was to cover the messy hair in the morning, which was not combed or brushed.
It was a circular cap with several folds and ribbons to make it sit neatly on the head, covering almost all the hair. It was preferred by women having short hair or that tied in a bun. Further, there was a drawstring looped into the hat to make it adjustable and fit well on most head sizes.
It was very popular in the early 1900s during the war-struck London, where people needed to be prepared to evacuate their homes at a moment’s notice.
Later on, the hat evolved into formal wear, and the fabric used in their making changed to the net with floral decorations.