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.
By this time, the sometimes complicated array of knots and styles of neckwear gave way to the neckties and bow ties, the latter a much smaller, more convenient version of the cravat. Another type of neckwear, the Ascot tie, was considered de rigueur for male guests at formal dinners and male spectators at races.
A bow tie is the only proper tie to wear with a tuxedo. They come in many shapes, sizes and materials but the most common are the bat wing or butterfly in silk, satin, or velvet. The bat wing is a bit more edgy while the butterfly is classic.