An innerspring mattress is a mattress constructed with a spring core to create a flexible surface as you sleep. This design is one of the most common constructions, and its coils help provide ideal comfort and support for sleepers lying on their side. The firmness is measured using coil gauges, which indicates the thickness of coils inside the mattress. Lower gauges usually indicate firm support while higher gauges mean a softer sleeping surface.
Innerspring models have coil cores typically configured with Bonnell, offset, pocket or continuous coil systems. Their top layers are made of comfortable materials that create firm, plush, pillow or tight tops.
Benefits of an Innerspring Mattress