High density foam is a very firm foam that generally makes up the bottom layer of popular memory foam mattresses. Other types of mattresses such as innerspring or hybrid may also use high density foam to support the spring systems.
High density foams generally are not used to create the entire mattress because they are just too firm. So, generally they are used as a foundation for the bed or to provide edge support.
High density 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: Structural firm foam used by many mattresses to provide foundation and shape.
Cons: Off-gassing problems with lower quality foams and it is too firm to make a mattress in its entirety.
A hybrid mattress blends foam and pocket springs in one mattress. Usually this involves a more substantial foam layer than other mattresses that are marketed as innerspring.
A hybrid mattress offers a 'best of both worlds' type feel, where there is added support from the pocket coils and a comfortable, pressure point relieving surface.
Though there are latex and memory foam hybrids, the feel of them can be quite different because of the response of the latex vs the memory foam's slow response.
Pros: Best of both worlds with memory foam / latex and pocket coils provide ultimate comfort and support.
Cons: Beware of the foams being used as some hybrids still off-gas or sag because of lower quality materials.
Overall Score:
High Density Foam: 8.9/10
Hybrid: 9.8/10
Comfort:
High Density Foam: 8/10
Hybrid: 9.8/10
Softness:
High Density Foam: 7.5/10
Hybrid: 9.8/10
Cooling:
High Density Foam: 8/10
Hybrid: 9.2/10
Hypoallergenic:
High Density Foam: 8.1/10
Hybrid: 9/10
Odor:
High Density Foam: 8.4/10
Hybrid: 9.1/10
General Support:
High Density Foam: 9.3/10
Hybrid: 9.8/10
Eco-Conscious:
High Density Foam: 8.5/10
Hybrid: 8.9/10
Price Value:
High Density Foam: 9.4/10
Hybrid: 9.2/10
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