Bonnel or independent springs. Choosing sofas: PPU or spring block

Orthopedic mattresses "Bonnel" are distinguished by affordable cost. These are representatives of the "economy class" among orthopedic sleep products. They provide convenience and comfort, but cannot compete with more expensive counterparts. The “weak link” of Bonnel mattresses is the dependent block of springs. The springs inside the structure are united by a rigid frame, so that when pressure is created in one area, all adjacent springs also react. For spouses with a large difference in weight, this can create discomfort.

A good choice for a summer residence

It is worth buying a mattress with a Bonnel block for a country house or other temporary housing. These products last much longer if not subjected to constant stress. In the Kings of Mattresses store, you can buy a simple mattress with a dependent block or choose an elite product with natural filler. Why is it worth giving preference to orthopedic products with the Bonnel block?

1. They are affordable and allow you to save money.
2. This is the most diverse segment - the catalog contains a huge number of models.
3. With proper operation, they serve for more than a dozen years.

Sleep is the most important part of human life, since only in this state our body recovers after a busy day. And here, not only the duration of sleep is important, but also its quality, which can only be ensured by properly selected pillows and mattresses for the bed. If you feel overwhelmed in the morning and can't get over the fatigue throughout the day, you're probably sleeping on the wrong surface.

Everyone knows perfectly well that a mattress should be chosen with an orthopedic effect. But here's what a "useful design" for sleep is, most have a rather vague idea.

Orthopedic mattress

Such a mattress looks no different from the usual springless or spring construction, on which everyone loved to jump so much in childhood. The main difference between such a mattress is that it allows the human spine to be in upright position throughout the night. True, in order to enjoy the orthopedic effect, it is necessary to take into account several important points, including physiological features person: age, weight, health status.

Today, many suffer from back pain, so the question of how to choose orthopedic mattresses for osteochondrosis is extremely important. Those who suffer from lower back pain are advised not to sleep on a hard surface. And for people with diseases of the upper spine, on the contrary, rigid models are suitable.

All orthopedic mattresses can be divided into two groups: spring and springless. Let's consider each of them in more detail.

Springless mattresses

Such orthopedic structures consist of two elements: a filler layer and a cover. In addition to the low cost, mattresses are distinguished by a wide range of models. They can be both rigid and soft, made of one material or several layers of different stiffness and structure. If you need a sofa with an orthopedic mattress for daily use, then it is better to choose a springless model.

If you decide to buy a springless mattress, choose models filled with natural latex or coconut flakes. This will be enough for those who are concerned about back pain.

Spring mattresses

Spring-based orthopedic mattresses consist of several parts: a spring block, a cover, a hard layer and a filler. The spring block can be independent or dependent. Simply put, the springs can be securely connected to each other or be in separate "cups".

Dependent spring block: pros and cons

Mattresses of this type include the Bonnel spring block, which consists of 120 5-coil springs equipped with special rigidity fixing units. The maintenance of the human body in an anatomically correct position is carried out due to the gradual decrease in the radius of the coil of the spring. The design can withstand weight up to 180 kg/sq.m.

Such mattresses allow you to provide a comfortable sleep, but have several disadvantages:

• Since all structural elements are fastened together, a “hammock effect” is created. When a person lies on the surface, the weight of his body affects not only those springs on which he presses, but also the entire mattress as a whole. This is especially inconvenient if two people sleep on the bed, when everyone feels the slightest movement of the second person;
• Such mattresses quickly lose their elasticity and are pressed through, since all the springs are constantly under pressure.

It is best to choose spring mattresses with the most springs.

Independent spring block: pros and cons

Mattresses of this type include an independent spring block, consisting of many springs (from 270 to 350 per square meter), each of which is made of strong wire 1.8 mm thick. Their diameter is much smaller than in the Bonnel system.

Each spring is placed in its own fabric case and attached to the neighboring springs using a special adhesive base. This allows the structure to be pressed through only in the place where the person directly lies down, without affecting other areas. Thanks to this, independent spring blocks “feel” the silhouette of the body much better.

The only drawback of such mattresses is their cost, but this money is offset by the advantages of the design:

• Since the pressure on the body is carried out in the most optimal way, a person will never feel "leakage" after sleeping on such a mattress. Due to the design features, the surface provides normal blood supply to the limbs and the whole body throughout the night. As researchers have proven, it is circulatory problems that cause discomfort during sleep;
• By repeating the contours of the body, the mattress allows the muscles to relax completely, thus, the risk of diseases of the cervical and lumbar regions is significantly reduced;
• The independent block of springs prolongs "life span" of a mattress.

In addition to the number of springs and the type of their connection, it is necessary to pay attention to other characteristics.

Hard mattresses

Orthopedists recommend sleeping on hard orthopedic mattresses for children and adolescents. The fact is that a growing organism, located on a soft surface, may begin to form incorrectly. Hence there is a stoop and other problems with posture and lumbar.

Hard surfaces are also useful for adults who constantly slouch, but are not recommended for the elderly. In order to ensure the correct position of the back, it is better to choose coconut fillers.

Soft mattresses

Soft surfaces are recommended for people with spinal diseases. This mattress is also the best choice if you prefer to sleep on your side. Thanks to the soft surface, such a dream will not cause pain. Also, soft mattresses are great for people with problems in lumbar.

Medium firm mattresses

Such mattresses are distinguished by an acceptable price and a good orthopedic effect, they are suitable for most people. If you prefer to sleep on your back and do not experience health problems, then the medium firm construction will suit you perfectly.

How to determine the firmness of a mattress

In order to understand how hard an orthopedic mattress is, just look at its characteristics. The higher the number of springs in the model, the stiffer it will be. Pay attention to the filler. For example, coconut coir (shavings) is the most dense and hard material, but latex, on the contrary, is soft.

Fillers for spring mattresses

The filler is located between the cover and the mattress springs. Depending on the type of material, the design will be more rigid or softer.

Fillers can be made from:

• Coconut flakes (coir);
• wool fiber;
• horsehair;
• felt;
• natural latex;
• Spunbond;
• sea ​​grass;
• Cotton fiber;
• Memory materials.

Covers for orthopedic mattresses

When choosing a mattress, the cover is of great importance. Based on its density and fit to the base, it will depend on how comfortable your sleep will be. A high-quality cover should be made of jacquard fabric, which is durable, as well as high elasticity and good breathability.

Covers made of synthetic materials will not breathe, so after sleeping on such a surface you will feel as if you were sleeping on a sticky oilcloth.

If we talk about whether the cover should be removable, then it is better to give preference to non-removable models. Such covers fit snugly to the mattress and do not deform, unlike their counterparts with zippers, which can “sit down” after the first wash.

What to look for when buying a mattress

Numerous manufacturers offer quite big choice models of mattresses of various firmness. In addition to the cost, you should pay attention to several important points:

• In order for the mattress to last longer, it is best to purchase an orthopedic bed for it, the lattice of which is different from the usual one;
• The length of the mattress is easy to calculate, it is enough to add 15-25 cm to your height, since it is recommended to leave free space on the side of the legs and head;
• The rigidity of the mattress depends not only on problems with the spine, but also on the weight of the person, the larger it is, the harder the surface should be;
• The optimal height of an orthopedic mattress is 15 cm;
• It is advisable to immediately purchase several quilted mattress covers.

In custody

It is very difficult to say exactly which mattresses are better. It primarily depends on your preferences. In order to understand how to choose an orthopedic mattress, reviews of which, most likely, you have already found on the forums, you first need to be guided by your wishes and the recommendations of your doctor. In order not to make a mistake when buying, try to sit or lie down on the selected model. The main thing is that the mattress is not only comfortable and cheap, it must also be made of high-quality natural materials.

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Nowadays, spring blocks and modern materials such as latex, synthetic winterizer, holofiber and polyurethane foam (PPU) are used as a sofa filler. Which one to choose? - a question that confronts every buyer when buying a sofa. This question is especially relevant if the sofa is supposed to be used for sleeping.

Let's compare two options of fillers: spring and springless. As criteria for comparison, we take convenience, durability and price.

The convenience of sofas with and without springs

This is perhaps the most priority quality for upholstered furniture. It is very important that during the rest the body is as comfortable as possible, so that the rest does not turn into a constant search for a more comfortable position, and the rise is not accompanied by complaints of pain in the bones and muscles and a bad mood, especially if the sofa is used as a sleeping place.

Spring "stuffing" of the sofa can be of two types: with independent and dependent (Bonnel) springs. When using dependent springs, the load on the surface of the sofa is unevenly distributed due to the fact that all the springs are connected to each other and, the impact on one causes a chain reaction. The location of the heaviest part of the body - the pelvis - sags. In this case, the spine takes an unnatural position for itself. It is simply impossible to fully relax in this position.

Independent springs in the sofa do not depend on each other. Each of them is separated from all others and even packed in a separate bag. Therefore, the load is distributed accurately. The spine occupies a natural, most optimal position for itself in the prone position. Resting on this sofa is very comfortable. And the state of a person after it is cheerful and energetic.

Springless options on the example of the most popular polyurethane foam. This material holds its shape very well. It has good elasticity and excellent orthopedic properties, perfectly adapting to the contours of the human body. Sleeping on a sofa with such a “filling”, for sure, will relax and rest perfectly. In addition, the material is hypoallergenic, environmentally friendly and easily restores its original shape.

Conclusion: independent spring blocks and springless filler are equal in terms of the first comparison criterion - convenience, although each person has his own priorities.

The durability of different sofas

When using high-quality polyurethane foam, the sofa will last a very long time, of course, if you do not regularly perform gymnastic jumps on it. In this case, it will lose its elasticity. In addition, PPU does not attract or accumulate dust, it is perfectly ventilated and completely safe.

Spring blocks are also durable. But with too much use, springs are more likely to break or sag than PPU. Springs, especially those made of low-quality metal, can begin to creak and peek out, ruining the skin. But, most often, this happens with very cheap furniture, where an insufficient number of intermediate layers are used or their materials are of poor quality.

Conclusion: according to the "durability" criterion, the comparison gives an approximately equal result.

The price of spring sofas and with PPU

The price of both spring and springless fillers depends on their quality. There is a very high-quality PPU with a long service life and a high degree of comfort. The price for it, of course, is higher than for low-quality material, on which pits will soon form.

Spring blocks also differ in quality. Bonnel dependent springs are the cheapest filler, but the convenience of such a sofa leaves much to be desired. Consider whether it is worth saving on quality. Yes, and will it be savings, and not pointless spending?

Conclusion: Polyurethane foam production technology is cheaper and easier than spring production technology. Therefore, spring sofas, especially those with independent springs, are usually somewhat more expensive.

Regardless of which type of sofa you choose, keep in mind that quality sofas, both spring and springless, are more expensive than low quality ones. Whether to save money or prefer the best quality and comfort is up to you. And in our catalog you will find

Spring block "Bonnel" (Bonnel) is a classic type of spring block and consists of cone-shaped springs with a load capacity of 6.5 daN, connected in turn by a spiral wire.

At present, there are a great many versions of the invention of a block of this design, but the most beautiful and confirmed by photographic documents is the version about the use of this type of blocks in Italy in order to clear minefields that remained after the war.

Bonnell means "waist". The spring tapers in the middle and takes the shape of the waist. With a slight load, the spring becomes softer, as large coils of the spring work, with a greater load, there is a stronger resistance to body weight, since with more force, small, stiffer coils of the spring work. The diameter of the wire used is from 2.2-2.4mm, the diameter of the reference coil is from 87mm to 91mm, the diameter of the wire for fastening together is 1.4mm. Modern equipment allows you to fasten the springs together with four turns of the helix, which makes the spring block more rigid and eliminates such an undesirable effect as creaking.

A distinctive feature of Bonnel springs is the successive decrease in the radius of the coil support. This allows optimal distribution of body weight. Such a body weight distribution system is orthopedic, since it allows you to maintain the body in an anatomically correct position. The simplicity and high reliability of the "Bonnel" type spring block, the affordable price and the orthopedic effect of the product are the main reasons for its mass application.

The Bonnel-type spring unit remarkably distributes the mass of the human body over the entire area of ​​its surface, thereby reducing the resulting pressure per unit of its surface. It well provides an even distribution of weight and the most optimal support for the spine, the so-called orthopedic effect. Orthopedic mattresses with a Bonnel-type spring block have springs per 1 sq. m must be at least 120 pcs.

Package

Packing of spring blocks is carried out by pressing method or by twisting method, which allows ten times to reduce the cost of transportation and storage of blocks.

The equipment for packing spring blocks by the twisting method is designed taking into account all the shortcomings associated with the possible deformation of the springs during the "twisting". A specially designed automatic block feeding conveyor completely eliminates the “shift” of the springs in the block at the time of packaging.

The pressing method mainly packs spring blocks with two frames. After unpacking, the unit is immediately ready for use.