The pocketed spring mattress has individual springs that can all independently move and react to the pressure of the body. This provides for an ideal support of the body in every position. The amount of springs is generally indicated per m2. In addition, a pocketed spring mattress can be used on top of an adjustable bed.
The inner spring mattress, also known as Bonell inner spring, consists of bigger, and therefore less springs per m2. The inner springs are separately switched, which can provide for a light wavy feeling. The mattress is a bit lighter and provides for a little less comfort.