Polish (PL)German (DE)English (EN)
Consulting and order service: +48 512 999 218
0

Heavy mattress - advantage or disadvantage?

10 lipca 2025
Is heavier mattress weight really a sign of higher quality – or just unnecessary burden? There is no one-size-fits-all answer to this, but there are objective criteria that help distinguish when a mattress’s weight truly translates to comfort, durability, and function – and when it’s just the result of marketing using ineffective solutions.

ONSEN® is a brand that prioritizes uncompromising functionality and proves that not all weight is justified. But it also shows that a lightweight mattress is rarely a good choice. Our Osaka Air mattress is a perfect example of a carefully designed product where weight results from the right materials – not random compromises.

Every kilogram counts

All types of polyurethane foams used in modern mattresses are priced according to their density – in other words, by the foam’s weight, since higher density means more weight. The higher the density, the more raw material is present per unit of volume, which directly impacts durability, resistance to deformation, and ultimately user comfort.

ONSEN® uses V50075 foam with a density of around 50 kg/m³ – a premium material that offers both body-conforming comfort and long-lasting durability. In contrast, lightweight closed-cell foams such as T20 and T25 have low density and wear out quickly.

Our HR50160 foam, the firmest component in the Osaka Air mattress design, also has a density of 50 kg/m³. That means not just noticeable weight but real functionality. The same applies to every layer of the top-tier mattress that Osaka Air unquestionably is. So yes – for us, mattress weight is a mark of quality.

More weight doesn't always mean better quality

Not every heavy mattress guarantees durability or comfort. A good example is latex mattresses, which can be very heavy – even heavier than those made with high-quality foams – but their breathability is questionable, and their structure deteriorates over time. They also often become a breeding ground for moisture and dust mites, which should be avoided. That’s exactly why ONSEN® firmly rejects latex as a mattress material.

The same applies to spring mattresses, including pocket spring variants. Their weight often results from the presence of steel springs, which lack point elasticity and require additional foam layers. These are often cheap, lightweight T-type foams which, despite low density, appear better due to the heavy spring cores – but only superficially. The result is a heavy mattress that’s ultimately non-functional.

The meaning behind a mattress’s weight

ONSEN® proves that weight alone isn't the key – it's the quality that matters. Dense HR foams, such as HR30100 or HR35120, feature an open-cell structure, providing both durability and excellent air circulation. As a result, the Osaka Air mattress breathes, and its weight is paired with real usefulness. Smart weight also means ergonomics – the mattress does not sink or deform, helping to prevent back pain. Users experience a noticeable improvement in sleep quality and recovery, translating into better daily performance.

So instead of asking whether a heavy mattress is a benefit, the real question should be: Does its weight come from a thoughtful design rather than just marketing? The answer is definitely yes when it comes to the Osaka Air mattress from our brand. It’s a smart product that, for a discerning user, is not unnecessary baggage, but a guarantee of healthy sleep.

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: Heavy mattress

Does the weight of a mattress matter?

Yes, mattress weight matters both practically and in terms of materials. A heavier mattress can indicate higher foam density. If the foams are properly designed and matched, it can result in greater durability. However, if the weight comes from unnecessary features or heavy, non-functional materials, then the weight loses its positive relevance.

Is a heavy mattress always better?

Not always ? but for a functional mattress with a well-designed interior, yes. The best mattresses are thoughtfully made, with proper density, firmness, and structure, combining durability with comfort.

Should a mattress be heavy or light?

From a user?s point of view, a lighter mattress is easier to move, rotate, or remove the cover. Generally, light mattresses ? weighing under 30 kg in a 160x200 size ? are made with low-density foams. This makes them less durable and not necessarily comfortable. Heavy mattresses may pose challenges during cleaning or bedding changes, but with proper functionality, the weight becomes irrelevant. ONSEN? designs mattresses to be functional and moderately heavy, using high-quality HR and V foams for top performance.

How much should a mattress weigh?

There is no strict standard, but a typical 160x200 mattress should weigh at least 30 kilograms to assume it contains only high-density foams. Of course, all material parameters should be considered.

How does mattress weight affect quality?

Weight can indicate quality ? but not always. It depends on what makes up the mass. If the mattress is heavy because it contains high-quality, high-density foams (HR and V ? T foam should be avoided), then the weight may reflect durability and an advanced build. But if it?s heavy due to outdated, non-breathable, or unnecessary materials (like springs, latex, or heavy fiber layers), it may reduce comfort. Top mattresses, like the Osaka Air from ONSEN?, balance weight with high quality and functionality by using modern open-cell foams with optimal density. What matters is design and ergonomics ? not weight alone.

Share
Newsletter - stay up to date!
Without your consent, we cannot add your e-mail address to the ONSEN® newsletter subscriber base.
Thank you for joining the ONSEN® newsletter subscriber group!
Comments
There were errors in the form.
First name or nickname *
E-mail address (will not be visible)
Telephone number (will not be visible)
Comment *
Thank you for adding a comment!
Learn more about how to choose the best mattress...

Producer of the boldly perfect Osaka Air mattress, anatomical pillows, and ergonomic furniture. A leader in the European market.