Best Foam for Seat Cushions

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Best Foam for Seat Cushions

Sitting is an important part of life. If you’re not comfortable, it will show on your face and in the way that you move about. When an older cushion starts to collapse or loses its ability to regain its shape, it becomes very uncomfortable to sit down on!

As a general rule, seat cushions made of natural latex foam are the most comfortable on the market. In terms of resilience, durability, support, cooling, and complete naturalness, natural latex foam is significantly superior to PU or Memory foam.

For over 30 years, I have studied, written, spoken about ergonomics, seat cushions, and mattress design. Due to my experience with a wide variety of foam types, I will be able to help you choose the best foam to fill your seat cushions.

Densities of Foams

various foams for seat cushions

Cushion comfort is determined by the foam. Weight (density) determines both foam lifespan and quality. Generally, the foam goes into three categories: 

  • low-density foams that offer minimal support
  • medium-density foams that offer average comfort at a higher price
  • high-density foams that can withstand heavier use and mean a longer lifespan

foam pressure density chart

Resiliency of Foams

Resilience is a unique attribute of foam that means it will return to its original shape quickly after compression. For cushion lovers wanting more bounce, Foam is perfect for you! The open-cell structure also ensures high resilience, making these foams very springy but still supportive enough to provide sturdy support over time as they gradually deteriorate and soften.

seat cushion foam density chart

If you’re looking for a cushion that will provide ultimate comfort, high-resilience foam is the way to go. The most expensive and durable type of foam out there today – it’s an excellent choice if money isn’t really an issue or your seat needs some serious upgrading.

seat foam density chart

When it comes down to finding the best seat cushions on the market, resilience may be one factor worth considering; after all this particular kind has proven time and again its ability of world-class quality with regard to longevity (that means without breaking down). latex seat posture cushion

High-Density Foams

High-density foams are the most common foam used for seat cushions because it is economical. It will provide some support and comfort, but not in the same league as High Resilience foam.

The compression of high-density foam will cause its original shape to return at a medium rate. As foam degrades rapidly over time, it becomes softer over time. If you sit on an old high-density seat cushion, you will probably bottom out.

Purchasing furniture from a big-box chain or online giant will likely result in cheap yet low-quality furniture. The foam is used probably is Polyurethane foam, of lower quality. Despite its low price, polyurethane foam is of low quality.

Memory Foam for Seat Cushions

Memory foam or polyurethane foam is also known as polyfoam. Polyurethane foams are the most common type of seat cushion

memory foam seat wedge bad

Memory Foams vs. Polyurethane Foams

  • Their textures differ quite a bit. Polyurethane is in both, however.
  • Memory foam is denser than polyurethane foam due to additional chemicals added during processing.
  • Chemically, both foams are similar but feel very different. Memory foam creates a sinking feeling to pressure more than PU foam, which is a lot springy.
  • Foam made from polyurethane is entirely synthetic. PU foams cannot be classified as ‘natural’, unlike latex which is usually natural.

The Benefits of Memory Foams and Polyurethane Foams

  • Affordable – especially with lower grade PU foams.
  • Cheaper chemical processing is a cost-saving way to make a seat cushion
  • Lightweight 

Disadvantages of Memory Foam and Polyurethane Foam

  • Pressure points or poor spine support
  • Uncomfortable 
  • The memory foam cushion itself can be too flimsy, limp, and slow to return to its original form.
  • Too Much Movement  
  • Poorly ventilated – no airflow in polyurethane foams
  • Tend to off-gas toxic VOC fumes 
  • Short lifetime 

Natural Latex Foams 

natural latex cushion

Natural latex foam is made from natural materials. Natural latex is obtained from the rubber tree  (Hevea brasiliensis).  In this tree’s bark is a milky sap that is collected and used to make latex foam.  Latex has inherent springiness.

It can be thought of as one of the highest quality foams for seat cushions because of its springy construction and exceptional feel. When using a latex seat cushion, you will be able to enjoy a seat that has bounce, making them ideal for continuous, all-day movement.  You need this movement to keep your discs healthy.  

A huge demand exists for latex cushions thanks to their renowned comfort and support.  Upon sitting on a latex cushion, you would notice how soft and cosy it is, as well as how firm it is, as it supports you uniformly in cloud-like comfort.

In addition to comfort, latex foam has many other benefits.  However, a great seat cushion should always have comfort as its top priority.

The Benefits of Natural Latex Foams

  • Latex is excellent at supporting the spine when compared to other materials. Because of this, chiropractors and osteopathic physicians often recommend using latex pillows. 
  • Unparalleled comfort 
  • Anti-mould and anti-dust mite. 
  • Naturally sourced product – no toxic chemicals.
  • Excellent ventilation 
  • Soft movement 
  • Long-lasting 

Cushions Made of Down or Feathers

Feather cushions are soft, beautiful and luxurious. But there’s a downside to them too: they pack over time and need fluffing on occasion for optimal use. And while they provide some structure when used alone in the form of an ottoman or footrest, you may find that if your furniture is very sofas it can sometimes lose its shape without down fillings beneath it—which means more expenses than just buying feather seat cushions!


We have all been there before. You’re sitting down to do some work and your seat cushion is so flat or uncomfortable that you shift positions every few minutes. The keyword here is “comfort.” If you are not comfortable when sitting at a desk, it will affect the way that you interact with customers and colleagues in the office. It can also lead to back pain if your chair isn’t ergonomically designed for good posture, which has become crucial as more people spend 8 hours working from home or remotely on their computers! 

Consider investing in an ergonomic foam cushion for comfort while seated for long periods of time.  For the most useful guidance on ergonomic information visit our blog post about how we helped one company increase sales by

**As a service to our readers, Axial Chairs provides access to our library of archived content. Please note the date of the last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinicians.
Dr Lawrence Woods DC

Dr Lawrence Woods DC


My goal is to create the highest quality ergonomic office chairs and accessories for unmatched comfort.

With 30 years of spinal healthcare experience in Ireland as a chiropractor, I learned the value of high-quality sitting for living a happy and healthy life.

I have a Chiropractic Degree from Life Chiropractic College West and I am NBCE Physiotherapy certified.


Dr Lawrence Woods

My goal is to create the highest quality ergonomic office chairs and accessories for unmatched comfort. With 30 years of spinal healthcare experience as a chiropractor, I learned the value of high-quality sleep for living a happy and healthy life. I have a Chiropractic Degree from Life Chiropractic College West and am NBCE Physiotherapy certified.


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