Unlike a solid block of foam, the springs compress individually to contour to your body's shape. This provides excellent lumbar support and maintains proper posture while sitting or lounging.

Made from hardened steel, pocket springs are highly resistant to sagging. They can withstand constant compression and release for many years, far longer than foam alone, which can break down and develop permanent indentations.

Because the springs are independent, movement on one side of the sofa (e.g., someone sitting down or shifting) is minimally transferred across the seat. This is a major advantage if you share the sofa with others.

They provide a unique blend of firm support and cushioned comfort. You get the responsive "push-back" of a spring without the bounciness of an old-fashioned sofa. It's often described as a supportive, "floating" feel.