Hr Foam Vs. Pu Foam – Which One Is Better? - Sofa Bed

TABLE OF CONTENT

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1. Difference Between HR Foam Vs. PU Foam
2. What Is HR Foam?
3. Benefits Of HR Foam
4. Cons of HR foam
5. What Is PU Foam?
6. Benefits Of PU Foam
7. Cons of PU Foam
8. Which Is Better, HR Foam Or PU Foam?

So, you are on the hunt for a sleeper sofa mattress. You browse online or go directly to the shop, and you are presented with different types of sofa mattresses based on foam. Though you have already shortlisted HR foam and PU foam in your mind, now you are left with a big confusion - PU foam Vs. HR foam - which is the best?

Remember, in general, when choosing the right foam material for various applications, high-resilience (HR) foam and polyurethane (PU) foam are two popular options.

In the choice battle on HR foam versus PU foam, we have high-resilience (HR) foam in one corner, sturdy and steadfast, boasting longevity and support. And in the opposite corner, we have polyurethane (PU) foam, versatile and comfortable, ready to cushion and cradle.

Both types offer unique characteristics and benefits, making the decision a matter of understanding your specific requirements. However, in this comparison, we will explore the qualities and considerations of HR foam and PU foam to help you determine which one may be better suited for your needs.

Difference Between HR Foam Vs. PU Foam

What Is HR Foam?

When it comes to foam types for a sofa, we often think memory foam is the best one as it is responsive and adjusts itself to body contour.

But in reality, one foam type is far more responsive than memory foam. Yes, as you have guessed, it is HR foam.

High resilience foam is a type of Polyurethane foam that has high density. Hence, the response time of the HR foam is less once the compression forces are withdrawn from above.

With high resilience, the foam has high bouncing capacity than normal memory or PU foam. This is why mattresses or sofas with HR foam don't sag.

Benefits Of HR Foam

Relieves pressure: HR foams have a good bounce factor. So, it helps in relieving the pressure from the trigger points in your body if you suffer from body pains and treat lower back pain.

Get Out Of Bed Without Disturbing Your Partner

The HR foam mattress has an advanced cellular structure, which absorbs your body motion quickly. So, you can get in and out of bed without causing any disturbance to the other person.

HR Foam Is Durable And Long-Lasting

This foam is more resilient and durable compared to lower-density foams. Because the higher density helps the foam retain its shape and structure over extended periods of use.

Highly Compatible

HR foam is compatible with several comforts and core materials such as springs, memory foam, etc. By combining HR foam with memory foam or springs, mattress manufacturers can create hybrid designs that leverage the benefits of different materials.

Cons of HR foam

Cost: High-resilience foam tends to be more expensive compared to standard foam or other cushioning materials. But it's still worth the investment.

Chemical odor: Sometimes, new high-resilience foam products emit a strong chemical odor, commonly called off-gassing. But this is only noticeable initially, and with time it vanishes.

What Is PU Foam?

If you take any basic foam mattress and there is a high chance it is made of polyurethane.

It has less thickness than other foam materials and has almost little resilience. And as you expect, the bounce factor is also low. But do you know why this type is preferred by many? It's because of its softness.

This is the cheapest and mediocre quality foam used not only in mattresses but also in mattress toppers.

Did you know that the top layer of many spring mattresses is made of PU foam?
This is done because of its low cost.

Benefits Of PU Foam

High Abrasion Resistance

You can count on PU foam because of its abrasion-resistant substance. This is why it's widely used for support and sandwiching between layers of hybrid mattresses.

Temperature Regulation

This foam type helps in temperature regulation when it is in the right density and cell size. However, depending on the cell size, PU foam is less effective at air control, and it easily retains moisture and body heat.

The High Degree Of Softness

Its soft nature makes it best for getting a good night's sleep without having to worry about getting sore back in the morning.

Allergy-Friendly

PU foam is naturally hypoallergenic and resistant to dust mites, mold, and mildew. This makes it a suitable choice for individuals with allergies or sensitivities.

Cons of PU Foam

Susceptible to compression:

PU foam can easily experience compression or indentation under pressure. So this is why the foam has lower hardness or density than other foam types. The foam can lose its original shape and resilience with time and repeated use or heavy loads.

Lack of bouncing factor

PU foam lacks the inherent bouncing or springiness found in materials like natural latex or high-resilience foams. This means that when pressure is applied and released, PU foam returns to its original shape more slowly.

Which Is Better, HR Foam Or PU Foam?

To determine which is better for you, you must consider factors such as the intended use, desired level of support, comfort preferences, budget, and any specific requirements you may have.

• Polyurethane (PU) foam and High-resilience (HR) foam have their advantages and disadvantages.
• High-resilience foam, or HR foam, is known for its superior durability, support, and longevity.

It has a higher density and is more resistant to compression, making it ideal for applications that require long-lasting support, such as mattresses or high-traffic seating. It is also more responsive and springy compared to PU foam.

On the other hand, polyurethane foam is a versatile material widely used in various applications, including furniture cushions, automotive seating, and insulation.

Did you know that back in , NASA developed memory foam, to enhance the performance of aircraft cushions. It was called the Temper foam. It was developed to absorb shock and, offer improved protection and comfort in the airplane seats. Thus, memory foam is now widely used in mattresses and other types of bedding for similar reasons: protection and comfort.

The texture of high resilience foam is soft and cushiony. It conforms to your body’s curves, offering suitable pressure relief. As a result, it is ideal if you suffer from joint discomfort. It’s also suitable for side sleepers who want more cushioning.

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High resilience foam, also known as high resiliency (HR), is a high-grade open-cell foam with a density of 2.5 to 2.8. Its cell structure is incredibly flexible and supportive. The high resilience foam also has a good float and comes loaded with load-distribution properties. As a result, seats, couches, beds, and heavy-duty furniture are ideal.

High-resilience foam is a polymer that combines polyol and isocyanate in a chemical process (two chemicals created from organic compounds). For example, polyurethane is made by mixing polyol and isocyanate in a 2:1 ratio. However, other compounds may be added to give each foam unit the correct amount of flexibility and density.

High-resilience foams aren’t as well-known as memory foam, but they are crucial in many popular mattresses. Memory foam beds’ transitional layer or foundation layer frequently contains high-density, high-resilience foam. This results in a more consistent sensation across the mattress and less shrinking than memory foam.

Like other polyurethane foam, high resilience foam is made up of a polyurethane mix and has a propensity to off-gas. If you have a history of lung problems, you should conduct further study on the reliability of High resilience foams before investing.

High resilience foam is one of the ideal foams in the bedding business because of beneficial characteristics like:

• Durability
• Adaptability
• Support
• Protection, and
• Comfort 

This is when critical parameters like density and stiffness come into play. The majority of mattresses are made by stacking various foam and fabric layers. Many famous memory foam manufacturers employ high resilience foam in the intermediate layers. However, greater or lower density foam can be present in the top or base layers.

High-resilience foam has numerous advantages that make it ideal for many scenarios.

1. Comfort

High resilience foams are a wonderful choice for clients who want a firm and long-lasting mattress.

The free cell structure of these high resilience foams, instead of the closed-cell structure of closed-cell foams, allows the mattress to keep a bouncy sensation. However, although it stretches and distributes weight effectively, it doesn’t permit much motion transmission from one side to the other.

2. Durability

High-resilience foams are extensively employed in furniture that gets a lot of usages. Particularly in public settings like bus sitting and public building benches.

This is because high resilience foams endure significantly longer than standard foams due to their great flexibility and durability.

3. Cost

High resilience foams are more expensive, so consumers searching for a long-term item with high durability choose them.

Customers believe that high resilience foam and mattresses are worth investing in because of their durability and ability to retain effectiveness for up to 10 years or more.

4. Orthopedic benefits

High-resilience foam and mattresses are delightful, but do they provide other advantages besides comfort and durability?

Well, High resilience foams provide proper weight dispersion and support due to their greater rate of flexibility. As a result, high resilience foams possibly can be employed for various orthopedic applications. For example, in the bedding industry, orthopedic mattresses refer to beds that assist proper sleeping posture, joints, and pain treatment.

1. Offers a bounce

High-resilience foam and mattresses can be a pain for sensitive sleepers, especially if they share a bed with a partner. This is because these foams, with their tight cell structures, can be more springy than, for instance, a memory foam mattress.

While bounce is a plus for some, it might interrupt sleeping habits for others until they grow accustomed to it. Also, while weight distribution is beneficial, this can make the mattress susceptible to motion transfer, which is present even if it isn’t excessive.

2. Off-gassing

Off-gassing is a prevalent issue with polyurethane-based foams, and high-resilient foams created with a polyurethane mix are no exception.

The breakdown of volatile organic chemicals in mattresses is referred to as off-gassing (VOCs). The high resilience foam and mattress may emit foul odors as a result of this breakdown. This is among the most significant disadvantages of high-resilient foams, and it may be a cause for concern for persons with an acute sense of smell or those who have recurrent respiratory difficulties. While the off-gassing impact is most noticeable at first and is usually very transitory, that is something to consider.

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