Bonnell spring mattress systems are the most traditional type of innerspring mattress. The Bonnell coil has an hour glass shape (wider at the bottom and the top than the middle) and are interconnected with a mesh of metal to make the spring system.
In many traditional innerspring mattresses from the 20th century and still some entry level models today have used the Bonnell spring to create durable and supportive mattresses.
Though this system is good at providing even support, there are complaints of aggravated pressure points and discomfort with Bonnel spring systems.
Pros: Durable materials and traditional even feel.
Cons: Pressure point discomfort and motion transfer issues.
High resilience is a polyurethane foam that has a much higher responsiveness than memory foam, which has a slower response. Because of this, those that enjoy more of a bounce in their mattress will gravitate towards this type of foam.
High resilience foams are much less popular than memory foam, but they make up important layers of many popular mattresses. Oftentimes the transitional layer or base layer of memory foam mattresses will contain high resilience foam at high densities. This provides a more even feel across the mattress, and less of a sinking feeling that memory foam alone would have.
Like all polyurethane foam, high resilience foam is made of a blend of polyurethane and has a tendency to off-gas. If you are susceptible to lung issues, please do additional research on the quality of foams before purchasing.
Pros: Quicker response than memory foam provides many mattresses with an even supportive feel.
Cons: Sagging and off-gassing problems with lower quality foams.
Overall Score:
Bonnell Spring: 8.7/10
High Resilience Foam: 8.9/10
Comfort:
Bonnell Spring: 8.7/10
High Resilience Foam: 8.8/10
Softness:
Bonnell Spring: 8.4/10
High Resilience Foam: 8.7/10
Cooling:
Bonnell Spring: 9.5/10
High Resilience Foam: 8/10
Hypoallergenic:
Bonnell Spring: 9.5/10
High Resilience Foam: 8/10
Odor:
Bonnell Spring: 9.5/10
High Resilience Foam: 8/10
General Support:
Bonnell Spring: 8.9/10
High Resilience Foam: 9.4/10
Eco-Conscious:
Bonnell Spring: 9.5/10
High Resilience Foam: 8/10
Price Value:
Bonnell Spring: 8.4/10
High Resilience Foam: 9.4/10
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