Bonnell spring mattress systems are one of the most traditional types of innerspring mattress technology in the market. The Bonnell coil has an hourglass shape (wider at the bottom and the top than the middle) and is interconnected with a mesh of metal so Bonnell spring coils are described as inter-connected wire coil technology. Mattresses of this type tend to be firmer due to its inner coil structure. This system is good at providing even support.
Bonnell spring system mattresses are generally durable and supportive mattresses. Bonnell spring mattresses can be a better choice for people who prefer firmer mattresses.