Do you wish to know what Bonnell spring mattresses (bionic) are? The most common type of innerspring mattress is one with Bonnell springs.
The spring system comprises the Bonnell coil, which has an hourglass shape and is wider at the bottom and top than in the middle.
Over time and thanks to numerous technological advances, spring core mattresses have continued to evolve and improve users’ sleep quality.
Let’s discover the Bonnell spring mattresses, their characteristics, advantages and disadvantages. We will also take as a point of comparison another type of spring mattress: pocket spring mattresses.
Also, read what the Pocket spring mattress is.
Let’s go.
What Is A Bonnell Spring Mattress?
THE BONNELL (BICONICAL) SPRING: HISTORY AND CHARACTERISTICS
Bonnell springs are the most widespread and first to appear on the market.
When they were invented in the 19th century, the field of application of these springs was quite different: they were placed under the benches of horse-drawn carriages and served as shock absorbers.
Today, it is inside mattresses that we most frequently find the biconical spring (Bonnell).
This spring, also called conical or biconical spring, is made in the shape of an hourglass: the two larger circular ends (or “cones”) have the particularity of being linked together by a thinner steel wire, then mounted on a steel structure to maintain the shape of the mattress.
Now let’s review Bonnell spring mattresses’ features and pros and cons.
BONNELL SPRING MATTRESSES: THE ADVANTAGES
Mattresses With Biconical Springs Have Three Major Advantages:
The Bonnell spring mattress is known for its durable materials and traditional even feel, making it a popular choice for many seeking a reliable, long-lasting bedding option.
The construction of the Bonnell spring mattress involves a system of interconnected steel springs, which provide a sturdy and supportive foundation.
These springs are made from high-quality materials designed to withstand regular use and maintain their shape over time.
The durability of the Bonnell spring mattress is especially beneficial for individuals who prefer a mattress that will last for years without losing its structural integrity.
The sturdy construction ensures that the mattress can withstand the weight and movement of sleepers without sagging or developing uneven surfaces.
It makes the Bonnell spring mattress a practical choice for those who value longevity and want to invest in a mattress that will provide consistent comfort and support for an extended period.
In addition to its durability, the Bonnell spring mattress offers a traditional even feel that appeals to many sleepers.
The interconnected springs distribute weight evenly across the mattress surface, creating consistent support.
It can even be exceptionally comforting for individuals who prefer a firm, stable sleeping surface.
Furthermore, the traditional feel of the Bonnell spring mattress can be attributed to its responsive bounce.
The interconnected springs have a natural resilience that allows the mattress to respond quickly to movements, making it easier to change positions during sleep.
This feature is often appreciated by individuals who prefer a mattress that offers a good balance between support and comfort.
While the Bonnell spring mattress’s durable materials and traditional even feel are notable advantages, it is essential to consider individual preferences and specific needs when choosing a mattress.
Some individuals may require specialized support or pressure relief, which other mattress types, such as memory foam or latex, can better provide.
Nonetheless, the Bonnell spring mattress remains a solid choice for those seeking a reliable and time-tested mattress with a sturdy construction and an even feel.
Tonic support and good suspension
Due to the multitude of springs that make up Bonnell mattresses (on average, there are 100 springs per m²) and their particular shape, they provide a power of so-called progressive elasticity and toned support for the whole body.
Indeed, the more the springs are under tension or pressure, the more resistance they offer.
Good ventilation
The particular structure of the springs, interconnected by spirals, also guarantees optimal ventilation of the mattress, preventing the proliferation of dust mites.
Note that all spring mattresses share this characteristic.
A relatively low price
The price of this type of spring mattress remains relatively low. For a Bonnell spring mattress, count $120 for a single-person mattress (90×190 cm) and around $200 for a two-person (140×190 cm).
Bonnell Spring Mattresses: The Disadvantages
Although a popular choice, the Bonnell spring mattress has drawbacks. One of the main issues associated with this type of mattress is pressure point discomfort.
Bonnell spring mattresses consist of a system of interconnected springs that provide support to the body.
However, these springs are often unevenly distributed, leading to inconsistent pressure distribution across the mattress surface.
As a result, certain body areas, such as the hips, shoulders, and back, may experience excessive pressure, leading to discomfort and pain.
The uneven pressure distribution caused by Bonnell spring mattresses can be particularly problematic for individuals with arthritis, fibromyalgia, or chronic back pain.
These individuals require a mattress that offers proper support and pressure relief to alleviate their discomfort.
Unfortunately, the Bonnell spring mattress doesn’t provide enough pressure point relief, worsening their problems and making sleep harder.
In addition to pressure point discomfort, motion transfer is another issue commonly associated with Bonnell spring mattresses.
The interconnected spring system, while providing support, also allows for significant motion transfer across the mattress surface.
It means that any movement made by one person on the mattress can be felt by their sleeping partner, causing disturbance and sleep disruption.
Mattresses with biconical springs have three major flaws:
Their lifespan
The average lifespan of these mattresses is 8 to 12 years, leading to a loss of firmness and comfort over time.
The transfer of vibrations
The fact that a steel wire links together the Bonnell springs can generate a relatively significant transfer of vibrations and movements between the partners, especially in the event of restless sleep.
Sleeping discomfort
Many users complain of feeling the Bonnell springs, a discomfort that can cause bad nights and back pain. It is why these classic springs, once essential, are now abandoned in favour of pocket springs.
Biconical Spring (Bonnell) Or Pocket Spring, What To Choose?
The traditional spring, Bonnell or biconical, is often compared to another: the pocket spring. The latter is a recent invention that stands out for its particular design.
Pocket coils are individually encapsulated in a “bag” of fabric and joined together by glue, fabric or thread, giving each coil more significant movement and reducing pressure points.
Let’s find out which biconical or pocket springs are preferable.
The main advantages of the Bonnell spring mattress compared to the pocket spring mattress are:
1. A more affordable price
2. More “toned/firm” support
The disadvantages of the biconical spring mattress compared to the pocket spring mattress are:
1. Shorter longevity (due to loss of firmness and comfort over time)
2. Less comfort
3. Less targeted ergonomic support
4. Transfer of vibrations and movements between partners (in double bed)
5. Not suitable for all sleepers
Conclusion
Now that you know what a Bonnell spring mattress is, always keep in mind that the Bonnell spring mattress is known for being made of long-lasting materials and having a classic, even feel.
It makes it popular for people who want a reliable and long-lasting bed. Although a popular choice for many, it is not without its drawbacks.
One of the main issues associated with this type of mattress is pressure point discomfort.
Bonnell spring mattresses consist of a system of interconnected springs that provide support to the
I have an extensive article stating Multi-Coil Spring Mattresses.