Innerspring is a term used to describe a type of mattress that is constructed using a system of tightly coiled springs, designed to provide support and comfort to the sleeper. There are a variety of other terms that can be used as synonyms for innerspring, including pocket spring, coil spring, Bonnell spring, and continuous spring. Each of these different constructions can offer varying levels of support and comfort, depending on the specific design and materials used. Some other synonyms for innerspring might include spring mattress, traditional mattress, or coil mattress, all of which can be used to describe mattresses that utilize a system of springs to provide support for the sleeping surface.