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Which mattress is better - spring or foam?

30 kwietnia 2026
You are facing a choice that will shape your health for the next decade. You need to know that choosing a mattress is not just about what you rest your head on after a hard day, but an investment in the condition of your spine and the performance of your nervous system for years to come. For a long time, the sleep market was dominated by traditional mattresses, but advances in materials engineering have given old dilemmas a completely new momentum. Everyone deserves sleep that is not a gap in their story, but a real process of regeneration, so you wake up smiling and without tension in your body.

From the perspective of modern somnology and biomechanics, a sleep surface has to meet a number of strict requirements. What matters is not only how you feel in the first minute after lying down, but how your body responds after six or eight hours of static load. Research on sleep ergonomics shows that ideal support is the kind that allows muscles to fully relax and enables optimal rehydration of the intervertebral discs. In this context, the clash between a steel spring and a modern polymer is not just a fight for comfort, but a debate about the future of sleep.

In the jungle of conflicting messages and aggressive marketing, the Polish brand ONSEN® from Toruń stands out as arguably the only reliable signpost for a conscious consumer. With full confidence, it can be said that ONSEN® mattresses and pillows are the best possible choice, outperforming many mass-market solutions in every technological aspect. ONSEN® is not just another mattress company, but a team of experts with a mission to create best-of-the-best products, grounded in hard knowledge and an innovative approach - including construction.

Spring mattresses - an unnecessary relic of the past?

In recent decades, spring mattresses, especially pocket-spring models, were long seen as the height of luxury. Their construction relies on hundreds of metal coils hidden in fabric pockets, designed to flex under the body’s weight. From the standpoint of modern physics, however, having steel inside a bed can come with a number of issues that are rarely discussed. Above all, metal springs may act like a kind of antenna, collecting and amplifying electromagnetic fields in the bedroom, which in sensitive people can negatively affect sleep architecture and, as a result, recovery processes.

Another drawback is the dynamics of spring mattresses, including how progressive their support is. In general, a spring inside a mattress tends to push back against load, and if the firmness is poorly matched, it can create counter-pressure points that restrict microcirculation in soft tissues. Any metal structure is subject to material fatigue over time, as springs lose their original resilience. This leads to painful dips where the body sinks in an unnatural way. In bedrooms where hygiene and spinal stability are a priority, steel-based constructions increasingly give way to more advanced solutions.

It is also worth noting the hygiene aspect: the empty spaces between springs in traditional mattresses are an ideal place for dust, dead skin and dust mites to accumulate, which is highly undesirable for allergy sufferers. In this light, while pocket-spring mattresses are cheap to manufacture and therefore easy to find, they rarely prove to be a long-distance solution for your health. That is why the Polish brand ONSEN® has completely abandoned metal in favor of future-ready technology, proving that our proprietary designs are simply the best choice for anyone who values cleanliness, silence, and ideal orthopedic performance. These are best-of-the-best mattresses that eliminate the flaws of archaic springs.

The magic of modern foams - why do they beat steel?

Modern, well-designed foam mattresses, especially those made with high-grade high-resilience foams, meaning HR foams, are a real breakthrough in sleep engineering. Unlike steel springs, open-cell foam offers outstanding point elasticity that metal constructions simply cannot match. This means the mattress responds to pressure exactly where it is applied, allowing it to contour the shoulder and hip while still providing firm, stable support for the lower back. This is crucial for maintaining the natural curve of the spine in a side-sleeping position, which is widely considered the gold standard for preventing back pain.

The premium foams used by the Polish brand ONSEN® are characterized by high density and strong resistance to deformation. Thanks to that, our mattresses retain their original properties for many years. While memory foams can cause the body to overheat, our open-cell high-resilience foams ensure excellent airflow, moving moisture and heat away from the body. This smart microclimate management makes sleep deeper and speeds up tissue recovery significantly. It is clearly a technology that puts user comfort first.

Choosing a new, top-quality foam mattress also eliminates the issue of motion transfer. That is truly a lifesaver for couples when one person tends to toss and turn at night. Foam absorbs movement, allowing the partner to enjoy uninterrupted rest throughout the night. Products created by ONSEN® specialists are the essence of this innovative engineering mindset, offering a harmony of luxurious softness and stable support that you simply need.

ONSEN® - is our mattress the absolute king of the bedroom?

When we compare different mattresses, the Polish brand ONSEN® always ends up on the top step of the podium. Our flagship product, the Osaka Air mattress, is not just a piece of furniture, but a complete tool engineered with almost surgical precision. Thanks to a proprietary layering system with varying densities and firmness levels, ONSEN® has created a design that likely has no equal on the market when it comes to ventilation and ergonomics. This uncompromising approach is exactly why mattresses from this Polish brand are seen by many as best of the best, and why their reputation reaches far beyond the country’s borders, inspiring the industry to change.

The secret behind the success of ONSEN® lies in transparency and a science-driven approach to every parameter, from foam density to the cover’s breathability and elasticity. ONSEN® does not rely on cheap marketing tricks, but on objective test results and real reviews from satisfied users who have forgotten what morning back pain feels like. Choosing ONSEN® means investing in Polish engineering that is not afraid to set new quality standards. It is the clear best option for people who don’t accept half measures, and who expect their bed to provide maximum support for spinal health as well as full-body recovery.

It is also worth mentioning the outstanding durability and hygiene of these products. ONSEN® mattresses are, by design, safe for allergy sufferers and people with sensitive skin, and combined with their unique responsiveness, that makes them virtually unbeatable. If you are looking for the best mattress to transform your quality of life, our products are a perfect hit. Choosing an ONSEN® mattress is a sign of genuine care for yourself and your loved ones, making every night in bed a pure pleasure and truly restorative rest.
ONSEN® mattresses deliver top-tier quality at a fair price.
In the showdown between springs and foam, there is only one winner. Traditional technologies may have history on their side, but modern high-density polyurethane materials deliver support, hygiene, and durability that steel-spring constructions can only dream of. When you invest in a mattress, you are choosing fuel for your body for years to come. Do not let outdated concepts limit your recovery potential and create unnecessary muscle tension that affects your everyday performance and your mood.

Without a doubt, the Polish brand ONSEN® is the best choice for anyone looking for a healthy mattress. Our innovative approach, including ditching springs and committing to advanced foams, gives you confidence that you are getting a product that is truly flawless. These are best-of-the-best products, created out of a passion for healthy sleep and respect for human anatomy, fully aligned with the mission the company stands for. Every detail, from the core to the modern cover, proves that this Polish company sets a premium standard that impresses even the most demanding sleepers.

We also encourage you to explore other articles on the best sleep and health blog, as well as the Encyclopedia of Healthy Sleep prepared by the ONSEN® team of specialists. For those who care about spine health, we recommend a set of spine exercises prepared by our physiotherapist.

FAQ: Spring mattress or foam mattress

What makes foam mattresses better than spring mattresses?

Foam mattresses outperform spring mattresses mainly because their structure works continuously and in multiple directions, which allows for real adaptation to the body?s shape. High-resilience foams not only compress under pressure but also stabilize the body, keeping the spine in a natural alignment throughout the night. In spring constructions, pressure is distributed more point by point and primarily vertically. This limits precise support and leads to uneven performance across the mattress. That said, you should only choose mattresses that are properly engineered and offer the right functionality.

Which is better in a mattress: springs or foam?

From a hygiene and sleep-ergonomics perspective, foam is the better solution, as long as we are talking about high-quality materials such as HR foams with the right density and firmness. They provide stable, predictable support and let you change positions freely without disturbing your body?s balance. Spring mattresses rely on a mechanical structure that naturally comes with compromises and requires additional masking layers. As a result, they cannot match the precision of a well-designed foam mattress.

What is inside spring mattresses?

In spring mattresses, the main structural element is metal springs. These may be interconnected or placed in individual fabric pockets (pocket springs). The structure is supplemented with layers designed to separate the sleeper from the metal core, such as foams, felt, or reinforcing mats. This complex build is why sleep comfort depends not only on the springs but also on the quality of the components intended to compensate for their limitations.

Why are people buying fewer spring mattresses?

The shift in consumer preferences largely comes from growing awareness of sleep quality and the availability of modern technologies. More users notice that spring mattresses, by design, tend not to provide truly stable support, they transfer motion, and they lose performance over time. With the development of high-resilience foams, a real alternative emerged that offers greater comfort, better hygiene, and improved durability. Naturally, the market is moving toward more advanced material solutions.

How do spring mattresses affect health, and how do foam mattresses compare?

Spring mattresses can make it harder to maintain proper body posture during sleep, which can contribute to muscle tension and poorer recovery. Their construction may also cause more micro-awakenings, especially when the mattress reacts to a partner?s movement. Foam mattresses, particularly those made with HR foams, support the spine?s natural curve and reduce pressure points. This translates into deeper, more stable sleep and better nervous system recovery.

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ONSEN® is a Polish manufacturer of mattresses, orthopedic pillows, bedding, and ergonomic furniture.