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.
Adjustable bow ties are the standard when the tie is to be worn with less formal lie-down collar shirts which obscure the neckband of the tie. One-size-fits-all adjustable bow ties are a later invention that help to moderate production costs.