High Density Foam vs. Reflex Foam

High Density Foam

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.

Reflex Foam

Reflex foam is commonly found in the transitionary and base foam layer of foam mattresses. It is higher density than memory foam, but still has enough give to it where it isn't as hard as a solid surface.

Reflex foam, like memory foam, is a polyurethane foam blend, which has been adjusted for higher density during its manufacturing.

Although some very firm mattresses are made completely of reflex foams, most foam mattresses are a blend of memory foam on the top layer followed by reflex foams in the middle and bottom layers.

Pros: Firmer, supportive foam that enables enough contour for heavier sleepers and support to traditional memory foam mattresses.

Cons: Lower quality foams can offgas toxic chemicals and sag faster than alternatives.

Learn More About High Density Foam

Learn More About Reflex Foam

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Material Scores

Overall Score:
High Density Foam: 8.9/10
Reflex Foam: 8.6/10

Comfort:
High Density Foam: 8/10
Reflex Foam: 8.7/10

Softness:
High Density Foam: 7.5/10
Reflex Foam: 8/10

Cooling:
High Density Foam: 8/10
Reflex Foam: 8.1/10

Hypoallergenic:
High Density Foam: 8.1/10
Reflex Foam: 8.1/10

No Odor:
High Density Foam: 8.4/10
Reflex Foam: 8.9/10

General Support:
High Density Foam: 9.3/10
Reflex Foam: 9.5/10

Eco-Conscious:
High Density Foam: 8.5/10
Reflex Foam: 8/10

Price Value:
High Density Foam: 9.4/10
Reflex Foam: 9.2/10