The word "bonnell" itself means a kind of "spring" used in spring mattresses. These mattresses are manufactured using springs units. Steel springs are attached in bonnell spring mattress to each other with helical wire, which gives strong spring ..

Pocket Springs are pre-compressed, individually encased coils. Individual encasement enables each spring to adjust independently of the others to perfectly support your body in any sleeping position. This provides more points of support and a bed..