All You Need To Know About Mattress Comfort And Support Layer

Do you know about the various layers with which a mattress is manufactured? 

Do you have any idea that those layers can be divided into two major parts- comfort and support layers?

If not, then it’s time to learn more about what these comfort and support layers are and why they are categorized in such a way. When you are choosing the mattress, you check the materials with which the product is made. However, you don’t focus on whether the comfort and support materials are appropriate for fulfilling your requirements or not.

On this account, we have presented here a complete mattress comfort and support layer guide, which will help you understand these layers and their functions, types, etc. 

What are the comfort and support layers in a mattress? 

The main two functions are to provide you comfort for sleeping in a luxurious and posh manner while supporting your body weight and reducing the pain in the muscles and bones simultaneously. 

To help the mattress perform both these actions properly, manufacturers include comfort and a support layer. 

  1. Comfort layer: This particular layer is added only to comfort the sleepers once their body hits the bed. Furthermore, they are less firm and quite lightweight so that you can feel the cosiness.
  2. Support layer: From the name itself, you can understand that the layer is mainly added to provide support to the above materials in the mattress and maintain the skeletal posture of the sleepers. 

With what materials comfort layer is manufactured?

A support layer is formed from denser and firmer materials that can provide both support and stability to the upper comfort layers. Following materials are usually considered to be the perfect option for support.

  • PU foam is preferred due to its extreme softness and posh feel.
  • Memory foam is also considered a comfort layer since it provides bounciness and relieves pain from the muscles and the spine. 
  • HR soft foam is also added in certain mattresses with a huge bounciness and a soft feel. 
  • Coir is sometimes considered as the comfort layer based on whether the fibres are curled too much or not. 

What materials are used for manufacturing the support layers?

A support layer is formed from denser and firmer materials that can provide both support and stability to the upper comfort layers. Following materials are usually considered to be the perfect option for support.

  • HD or High-density foam is added because of its hardness and high firmness level. 
  • HR foam is added to support the memory foam in almost 70% of the mattresses to increase the bounce and support. 
  • Rubberised coir supports the above layers in a mattress having overall firmness between 4.5 to 6. 
  • Rebonded foam is usually used when there are multiple soft and comfort layers added to the mattress.

Comfort Layer Vs Support Layer

AttributeComfort layerSupport layer
Temperature regulation Can regulate the temperature with ease due to the air pockets present in the layers as well as due to the inclusion of gel-based cooling material in some productsUnable to regulate temperature due to high density
Firmness Less firm with the value ranging between 3 and 5.5It is highly firm to add support to both the comfort layers and the sleepers
Motion transferPlays a pivotal role in reducing the motion transfer, thanks to the special design of the comfort layerDoes not have any role in preventing the motion transfer
ConformingConforms according to the applied heat and pressure on the upper surfaceDoes not conform according to the applied pressure and heat
Durability Less durable due to lower firmness value and hence, can easily sag underweight.It is highly durable due to its high density and weight so that it won’t sag too soon.


You now have an idea about the support and comfort layers in any mattress and their function. However, since both these layers of material vary from basic PU foam to advanced rebonded foam, you must choose them carefully. If you want plushness, you must go with the soft comfort materials, while for having better body support, the mattress should have firmer support material.


Comfort layers are usually made from materials having firmness ranging between 3 to 5.5. That’s why answering which particular material will be best for comfort is a bit difficult since it depends on an individual’s choice. For some people, the PU foam forms the best comfort layer, while some sleepers consider the memory foam to be the best material for comfortable sleeping.

Since the support layers are meant to provide proper support and balance to the spine and back muscles, it is imperative to check the thickness of this material before buying the final mattress. Usually, the support layer should have a thickness of about 40% to 50% of the mattress’s total height. For example, suppose the mattress is 5” thick. In that case, the support layer must be about 2” to 2.5” for providing maximum relief to the back pain.

No, the support layers present in the mattresses do not provide comfort to the sleepers. For example, suppose you flip the mattress to make the supporting material the top layer. In that case, you will have difficulty sleeping due to the hardness and almost negligible conforming level.

In the spring mattress, the coils forming the entire spring layer are considered a fusion of both support and comfort layers. It is added to add more bounciness to the mattress, which will provide you with more cosiness. On the other hand, with more coils included in the layer, the density of the layer is increased to ensure that the firmness is above 5. Hence, it also acts as the support layer for sleepers.

Since the support layers are heavy and firm or extra firm, their densities are quite high. Due to such a high density, the air pockets in between the fibres of the support material are almost zero in number. That’s why normal air circulation is not possible if the material has high density, like the rebonded foam or the HD foam. Hence, for maintaining the air circulation, the edges are equipped with a ventilation system to ensure air can pass in between the layers if not through the supporting material.

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