Adding cornices and shades to bedding decoration can bring a touch of elegance and sophistication to your bedroom. Cornices, which are decorative frameworks along the top of a wall or piece of furniture, can be used to frame a bed, adding a regal and polished look. Shades, such as Roman shades or fabric curtains, can be used to provide both privacy and style. When choosing these elements, consider the overall color scheme and style of the room to ensure they complement the bedding and other decor.