Coil Systems

There are several different types of mattress coil systems commonly used in mattresses. Each coil system has its own unique design and characteristics, offering varying levels of support, motion isolation, and durability. Here are some of the most popular coil systems:

1. Bonnell Coils: Bonnell coils are the oldest and most widely used coil system. They have an hourglass shape and are interconnected with spiral wires. Bonnell coils provide good support but are not known for excellent motion isolation or contouring to the body.
2. Offset Coils: Offset coils have a similar shape to Bonnell coils but with a flattened top and bottom. They are designed to conform better to the body’s contours, providing improved support and reduced motion transfer compared to Bonnell coils.
3. Continuous Coils: Continuous coil systems consist of a single wire formed into a series of S-shaped coils. The coils are interconnected, providing enhanced stability and support. Continuous coils are generally durable, but they may have lower motion isolation compared to other systems.
4. Pocketed Coils: Also known as individually wrapped coils or Marshall coils, pocketed coils are individually encased in fabric or cloth pockets. Each coil moves independently, allowing for better contouring to the body and excellent motion isolation. This coil system is often preferred for reducing partner disturbance. The pocketed coil was invented over 100 years ago by James Marshall to help his ailing wife be more comfortable.
5. Offset Pocket Coils: This coil system combines the benefits of offset coils and pocketed coils. The coils have an offset shape for improved conformability, and they are individually wrapped to provide better motion isolation.
6. Micro Coils: Micro coils are smaller in diameter compared to other coil systems and are usually used in the comfort layer of mattresses. They offer enhanced contouring and pressure relief, especially in combination with other support systems. Micro coils will be found in the top layers of the mattress.

Coil systems are just one specification to look for when choosing a mattress. The gauge (thickness) and number of coils, the quality of materials used, and additional comfort layers are also important metrics. But the #1 most important specification is how the mattress feels to you! Everyone is different and a comfortable mattress is very subjective. Stop in today and try one out to find the best one for your unique needs!