nightcoats
A nightcoat is a type of garment worn at night, typically for warmth and comfort. It is often a loose-fitting, robe-like garment that can be made from various materials such as cotton, silk, flannel, or fleece. The design of a nightcoat can vary, but it generally covers the body from the shoulders to the knees or longer. Some nightcoats have sleeves, while others are sleeveless. They may fasten with buttons, ties, or simply be worn open.
The primary function of a nightcoat is to provide an extra layer of insulation during sleep, especially