The foundation of mattress comfort is the right spring system. One of the most common questions we receive at KAR-AS Tekstil is the difference between pocket springs and bonnell springs. Here we explain the structure and use of both systems.
A bonnell spring is a continuous steel network of hourglass-shaped coils linked by helical wires. Made from high-carbon steel, it is durable and cost-effective. By distributing load across a wide surface it offers solid support, making it popular in entry and mid-range mattresses.
In a pocket spring unit, each coil works independently inside its own fabric pocket. This independent movement provides targeted support to every part of the body and prevents motion transfer from your partner. It is ideal for premium mattresses seeking orthopedic comfort and silence.
If you need an economical and durable solution, bonnell springs are a great choice; if personalized comfort and motion independence are the priority, pocket springs stand out. At KAR-AS we manufacture both systems with high-carbon steel quality, offering long-lasting spring solutions to our producers.
