Independent pocket spring box «Pocket Spring» is the most effective - core of the best models of spring mattresses. Each spring «operates» independently within area restricted by separate cup («pocket») out of thin nonwoven fabric.
Independent springs system completely distributes the load thus creating effect of anatomy not only of the mattress surface but the whole system.
To create different areas of springiness or entire boxes of increased hardness they apply wire of different thickness (diameter) and springs of different diameters. The less diameter of a spring (the thinner the spring) the more distinctive elasticity of the spring box is seen.
Different nonwoven fabrics are used as the frame fabrics.
The mattresses endurance enhances through use of frame structure on both sides of the spring box.