The smallest mattress coils so far
It used to be that the shortest mattress coils were the 4" Bonnell coils in a sofabed mattress. The reason they were so short, when most coils were 7 or 8 inches high, was so the mattress could be folded to fit inside the sofa under the seat cushions.
With the introduction of pocket coils, the trend was for innerspring coils, at least the wrapped coils, to become taller, up to 9 or 10 inches. This allowed greater conformabiity and more...
What Are You Sleeping on?
The Ingredients List for Mattress Recipes
What are you sleeping on? A few of the readers of this article may sleep in a sleeping bag or on folded blankets or quilts on a sleeping mat or an air mattress, especially if they are camping at the time and using a smart phone or tablet. Most of us, however, sleep on beds of one sort or another, also including sofas, futons, semi sleepers, and built-in beds.
The most common configuration for a bed in North America is a...
Beyond Wood Slats: Winged Slats
Wood slatted foundations, more commonly known as European wood slats, were developed in 1956 by Karl Thomas and his son Wilfried Thomas for better support of mattresses. Just as James Marshall invented pocket coils for his wife, Karl Thomas developed the slatted frame for his. In other words each invention was to meet a need.
The Thomases sold the slatted frames under the name of Lattoflex. Wood slats became the standard flexible foundation for beds in...
In February 2014, I posted an article about wood coils, a new kind of mattress innerspring invented and developed by a Hungarian company. Not long before the launch of wooden coils in the bedding market, another new kind of mattress spring was invented and introduced into the market by Willy Poppe, a Belgian. Poppe is CEO of a family-owned bedding manufacturer, Diamond Spring Company, in Sint-Niklaas, East Flanders, Belgium.
Pocket (Marshall) Coils
[caption id="attachment_731" align="aligncenter" width="300"] Pocket coils Image from Simmons Beautyrest[/caption]
Pocket coils, also known as pocketed coils, encased coils, wrapped coils or Marshall coils, are light gauge open-end coils in fabric pockets. They were invented in 1900 by James Marshall, an Englishman who migrated to Canada. In Toronto, Ontario, Canada he founded the Marshall Mattress Company to make mattresses using his technology. The company is...
[caption id="attachment_719" align="aligncenter" width="347"] Looking down rows of continuous coils Image from Bedrooms & More, Seattle, Washington[/caption]
Continuous coils are the least expensive type of coils used in innerspring mattresses. According to Seattle Mattress Company, this coil type was invented by Serta. Currently, Serta is the largest user of continuous coils. Serta's continuous coils are manufactured by Leggett & Platt under the trade name...
Offset (Karr) Coils
[caption id="attachment_705" align="aligncenter" width="642"] Offset Coil System Image from Bedrooms & More, Seattle, Washington[/caption]
Offset coils, also called Karr coils, were invented in the early 1900s by Frank Karr, who also started the Spring Air mattress company. They were developed from Bonnell coils, the original support for innerspring mattresses. Since the inception of offset coils, they have been used by many other mattress companies.
Bonnell Coil System,
Image from Bedrooms & More, Seattle, Washington
The oldest type of coil used in mattresses is the Bonnell coil. Bonnell coil mattresses are often called "traditional mattresses" or "traditional innerspring mattresses." Other types of coils have been developed since, but they all originate in the Bonnell coil.
Bonnell coils themselves were developed from buggy seat springs. They are hourglass shaped. The ends are knotted, the end of the wire...
European Wood Slats –
In Europe, the preferred foundations have several closely spaced slats made from a springy wood, such as beech. The resiliency of the wood makes the wood slat foundation absorb shock, much like a box spring. The springiness of wood can be felt walking over a wooden floor as opposed to a concrete surface.
Unlike the box spring, a wood slat foundation does not depend on metal, making it preferred by persons wary of the amplification of electromagnetic...
by Wesley Vaughn
[caption id="attachment_342" align="aligncenter" width="397"] Sealy Mattress and Box Spring[/caption]
It is common knowledge that we need sleep, and that—for the most part—several factors determine whether and how we sleep. Among these factors are time of day, how tired we are, physical condition, medication, diet, amount of light, noise, vibration and motion, warmth and cold, pain and comfort.
Even knowing this much, it is easy for many people to...