How we built our Latex Hybrid Mattress - Part 5: 1” Super High Density Medium Soft Support Foam

How we built our Latex Hybrid Mattress - Part 5: 1” Super High Density Medium Soft Support Foam

Foam density is the mass of a foam’s material within a cubic foot. The denser the foam, the more compact the foam material is. This, in turn, makes the foam heavier. A foam’s density is characterized by pounds and is determined by taking its mass and dividing it by its unit volume.

What is super high density foam?

High Density foam is a medium-quality industrial-grade foam. It is sold primarily for mattresses,

What is the difference between medium and high density foam?

High-density foams weigh more than low-density foams. Low-density foams are considered to be three pounds per cubic foot or less. Medium-density foams are four to five pounds per cubic foot. High-density memory foams are six pounds per cubic foot or more.

Is it better to sleep on a foam or mattress?

Side sleepers, in particular, tend to prefer foam beds, as they often do a better job of conforming to the shape of the body. 

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.

Pros: Structural firm foam used by many mattresses to provide foundation and shape.

There is also confusion surrounding foam density and foam firmness. Many people think that a higher foam density means a firmer foam. This is not the case. A low-density foam can be firm and a foam that is high in density foam can be soft.

When purchasing a foam mattress, some of the characteristics chosen such as density and thickness is budget-oriented while firmness is mostly a personal preference. However, an important aspect that should influence one’s decision is the weight of the user/s. For mattress density and thickness, the heavier the person, the denser and thicker the mattress should be to support their weight. If the mattress is low density, it will lack support and lead to excessive sagging. If the mattress is too thin, it can bottom out and cause excessive pressure points. This is most notable when sleeping on your side.

The lighter the person, the less dense and thinner the mattress can be to support their weight. Lighter people do not need the same conformity from higher density foam to provide pressure relief that heavier people need. A thicker mattress could be purchased but is not a cost-effective purchase.

We hope you enjoyed our series on our Latex Hybrid Mattress.

In the following week we will be discussing our bedding, we hope you enjoy the read and would appreciate any questions you may have by emailing us on

Kind regards,

The SpineAlign Team