OEM / ODM Mattress Bonnell Spring Steel Roll Up Bonnell Spring System

The Bonnell spring features the classic figure eight spring design. Over the last century and a half it has

proven its effectiveness. The hourglass round shape of the spring delivers a good deal of responsiveness.

Bonnell springs are tied together to form a mat around helical cross wires. These connect each spring

coil to the spring unit. The spring unit is completed with four millimeter diameter edge wire and edge wire

support clips. This support prevents the mattresses edges from collapsing when you are sitting on the edge

of the bed.

Bonnell spring units are noted for compressing easily at first. However, the more you compress them, the

firmer it becomes. The result of this feature is that mattresses that are fitted with Bonnell springs provide

you with a good mixture between softness and firmness.

Another impressive feature of Bonnell springs is that they are very durable. In fact, these coil springs are

virtually indestructible. They are, as a result, able to be recycled, which makes them very environmentally

friendly.

On the downside, Bonnell springs are best suited to a single person sleeping situation. This is because they

are unable to prevent partner disturbance. However, they are often used in two person sleep mattresses. It

has also been noted that the Bonnell spring system is not as effective as newer mattress technologies at

preventing pressure point discomfort.

The Bonnell spring manufacture process begins with the heating of the steel wire to allow it to be bent into the

desired shape. Once the hourglass shape has been achieved, the individual springs are interlocked. The spring

system is then packed into the mattress and surrounded with cotton, wool and/or foam.

Bonnell springs comprise the lower level of a mattress. On top the springs sits layers of foam, cotton or wool,

depending on the brand of mattress.