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.
The classic bow tie is the one that you tie yourself. Perfect for any formal affair, this bow tie can be in any shape or style and still look good. This bow tie is also the perfect one for non-formal usage of a bow tie, such as going to church, attending a professional event, or just going to teach a class.
White-tie is the most formal look for men; it includes a formal tailcoat, a white vest, and a white tie. Black-tie is slightly less formal; men can simply wear a tuxedo, and should take the black tie part literally, wearing an actual black tie (and vest or cummerbund).