The term MATTRESS COMPONENT can be summarized as a COIL, which is a four-letter word. A COIL is a type of spring used in mattresses to provide support and comfort. It is usually made of metal wire or plastic and is designed to absorb shock and distribute weight evenly. Coils are often arranged in rows and connected together to form a single unit. They are an important component of mattresses, as they provide the necessary support for a comfortable sleep.