What is foam rubber and its types - which one is best to use on a sofa?

A correct and thoughtful approach to the material from which a mattress is made is an important point in caring for human health. A few decades ago, consumers had the option of purchasing both a foam and an innerspring mattress. If the first attracted consumers with a soft and comfortable base, then the second - with durability and endurance. What has changed now?

The modern name for a foam mattress is polyurethane foam. The name change is associated with the release of various types of material with interesting features. To decide on the choice of a suitable base, you should study the recommendations, reviews of owners, and the features of caring for a foam rubber product.

Differences between polyurethane foam and foam mattresses

There are no significant differences between the materials. The chemical formula of foam rubber and polyurethane foam is the same, the starting components are the same, but special additives are allowed in the structure. In this regard, differences may appear in the degree of rigidity and in the speed of restoration of the original shape after loading.

Nowadays, “foam rubber” is usually called a low-density polyurethane foam mattress. Next we will cover the topic of the density of such mattresses.

A careful assessment of the characteristics will allow you to decide on purchasing the most suitable mattress material.

Hardness degree

Unfortunately, to simplify the definition of mattresses by material, criteria are used that often do not reflect their actual differences. For example, among inexperienced sellers, thin inexpensive mattresses are usually called foam rubber, and dense PU foam mattresses with increased product rigidity are called polyurethane foam. Therefore, always check the density and hardness of the material. It is important to understand that the required hardness is achieved during the preparation of the chemical composition before the production of blocks, and also depends on the features and production procedure.

There are several degrees of hardness of polyurethane foam mattresses, depending on the type of additives used.

  1. Very soft mattresses are based on thin and inexpensive foam rubber, which is not able to support the body in a comfortable position and ensure uniform distribution of the load on the spine and back during rest. We categorically do not recommend using such mattresses.
  2. Soft mattresses resemble a feather bed in which a person sinks, as if in a cloud of fluff. Increased softness creates extraordinary comfort for relaxation, but is not always beneficial for the spine. If such surfaces are recommended by an orthopedic doctor, then you should place an order without hesitation, otherwise you should pay attention to the next type.
  3. Medium-hard mattresses do an excellent job of supporting the body in a comfortable position, take an anatomical shape, and do not press through. A distinctive feature can be considered the slow restoration of the original shape. These mattresses are suitable for most people and last much longer than the first two types.

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Thickness

The thickness of foam mattresses can start from 7 cm and reach up to 30. We do not recommend using mattresses below 10-14 cm as an independent sleeping place for an adult.

A mattress with a foam thickness of 10 cm or more is an excellent and affordable alternative to models made from other materials. For its manufacture, the manufacturer usually chooses high-density polyurethane foam, which guarantees:

  • correct distribution of the load on the body,
  • rapid return of the material to its original state, regardless of the strength and duration of the load,
  • adjustment to the anatomical features of the owner.

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Advantages

  • Hardness
    A wide range of mattresses that differ in density allows customers to choose a model that suits their hardness. Excessively soft polyurethane foam is suitable for short-term sleep or rest, since prolonged exposure to such a base can negatively affect the spine.
  • Strength
    One of the features of foam rubber is its porosity, which provides tear resistance. It is advisable to eliminate mechanical loads such as jumping on the surface, which will significantly extend the service life.
  • Viscosity
    Mattresses can be purchased for people with greater weight due to the high degree of viscosity of the material. One clarification: you need to choose dense polyurethane foam.
  • Weight
    Polyurethane foam mattresses are lightweight due to the porous structure of the material. The properties of such models resemble spring versions.
  • Cost
    The bulk of foam mattresses are presented on the market at prices affordable to consumers. Among the cheap options, you can choose products that are small in thickness and quite soft, for the manufacture of which inexpensive materials are used.

Combined options

The characteristics of a PU foam mattress can be significantly improved by adding just one layer of another material. Moreover, this will have a slight effect on the price, but the level of comfort will become noticeably higher. A thin layer of natural coconut coir on the surface of the foam will make it more rigid and add bactericidal properties to the entire product. The relief surface of the top layer will create a light massage effect. And innovative memory foam will adapt to every curve of your body and create unique comfort while sleeping.


The cellular structure gives the mattress a massage effect, natural latex provides comfort

Flaws

  1. The service life of polyurethane mattresses is shorter than that of mattresses with springs or coconut coir filling.
  2. When exposed to high temperatures (smoldering, combustion), the material releases toxic substances.
  3. According to some experts, foam rubber is not 100% safe when using mattresses.
  4. Polyurethane foam has low moisture transfer, so drying takes longer than desired.

Rules of operation and care

Caring for the product is easy. It is worth considering only a few rules for the long service life of foam rubber.

Experts advise:

  • turn over more often, 1-2 times a month for stable fixation of the filler on both sides;
  • ensure a flow of fresh air so that the product always remains dry, i.e. ventilate the room 1-2 times a week, removing it and bedding from the bed;
  • periodically clean with a household vacuum cleaner, knocking out dust or other approved cleaning agents according to the instructions.

Additional Information! Some types of foam accessories can absorb odors, so it is important to keep them clean to ensure complete relaxation and safety.

For a child, the best choice would be coconut foam made from natural coconut fibers. It is also recommended to wear a waterproof cover on top.

The main child's sleeping place should be rigid enough to ensure the correct anatomical position of the spine during sleep. This prevents the development of scoliosis and disorders of the musculoskeletal system.

Tips for choosing a foam mattress

To ensure that your purchase does not cause harm to your health, you should carefully choose a polyurethane mattress. Offers to buy a product filled with foam rubber chips or from an unknown manufacturer should be avoided. It is impossible to justify spending a lot on purchasing a counterfeit product that will cause a lot of inconvenience during sleep and poor health after rest.

When choosing a foam mattress, you can focus on the following rules:

  • avoid shopping in street markets, in stores that cannot provide certificates
  • on product quality, manufacturer documents and other papers;
  • perform an elasticity test, which will manifest itself in the elasticity of the material and the rapid restoration of its original state after deformation;
  • review the internal material by contacting the manager or seller;
  • test by lying on the surface, if possible;
  • give up mattresses that are too soft and will not benefit your health;
  • select options of high and medium degrees of hardness, guaranteeing good sleep,
  • restorative rest, positive effect on the spine due to orthopedic characteristics.

Important! Before purchasing a model with orthopedic properties, you should make an appointment with an orthopedic doctor, who will be able to suggest a polyurethane foam mattress model of suitable hardness. The basis for the choice will be the characteristics and needs of the patient’s body. It is important not to self-medicate!

Many buyers were able to appreciate mattresses made from combined materials. In such cases, foam rubber is on one side, and, for example, coconut coir is on the other. You can find other combinations on the market that attract attention with their excellent characteristics.

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