Most plush mattresses have a solid inner core of coils. Plush and pillow top spring mattresses are similar; both typically have structural firmness and stability. They also have a soft outer fabric surface intended to make sleep more comfortable.
A necktie, or simply tie, is a long piece of cloth worn for decorative purposes around the neck, resting under the shirt collar and knotted at the throat. Variants include the ascot tie, bow tie, bolo tie, zipper tie, cravat and clip-on tie. The modern necktie, ascot, and bow tie are descended from the cravat.
Not every dress code is strictly black tie. For black tie optional events, men can choose to wear a dark suit, white dress shirt and conservative tie, such as a classic striped pattern. Leather dress shoes complete the look. Women can wear floor-length gowns or cocktail dresses, but dressy separates will do, too.