single bed sales near me growell beds and furnitures trichy A Bonnell spring and latex foam mattress is a hybrid mattress that combines the support of Bonnell springs with the comfort of latex foam Bonnell springs are hourglass-shaped coils interconnected with spiral wires. They provide support and durability to the mattress. The coil structure offers a traditional spring mattress feel, with responsive support and bounce. Bonnell springs are known for their ability to distribute weight evenly and provide stable support across the entire mattress surface.