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Progressive Rate Springs: What Are They Doing in My Bed? If anyone of us knows what progressive rate springs (PRS) are, the first place we expect them is in wheeled vehicles. In fact, that is the intended application of progressive rate coiled springs, and that is what comes up first in an online search. So it surprising to find "progressive rate springs" in the description of a mattress. And a waterbed mattress, no less! Before we go on, let's see what a progressive rate spring is. Some...
Sleeping on Air Many of us have dreamed at one time or another of floating on a cloud. Sometimes using a high-end luxury mattress is described as "sleeping on a cloud" or "sleeping on air." That is not always just a figure of speech. When we use an airbed, we are literally sleeping on air. As with any mattress concept, the goal is restful, restorative sleep. The modern airbed had its beginning with bicycles and automobiles. The first pneumatic tires (inflated with air) used innertubes,...
Nanocoils: 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...
Aloe Vera: The Succulent Ingredient Aloe is a succulent plant which grows naturally in desert and semi-desert areas. Used for thousands of years as the source of medicinal and cosmetic products, this plant has been so widely cultivated that identifying its place of origin is a matter of educated guessing. It is also known by other Latin names, but the official one is Aloe vera. The three most active substances in Aloe vera are derived from hydroxyanthrone. Collectively they are called...
Coconut and Coir Coconuts are not only something you can eat, but something you can sleep on. Coconuts are the fruit of the coconut palm (Cocos nucifera), a tree naturally found on tropical coasts. The coconut palm has spread by means of its bouyant seed floating on water, following ocean currents and tides. From beaches, it spreads to nearby low areas by dropped seeds. Coconuts are rather large and heavy for seeds, so coconut palms do not naturally range far from the shoreline. However,...
Polyethylene Penicillin was discovered by accident when Alexander Fleming noticed bacteria dying in the presence of certain molds. Vulcanization of rubber by sulfur was also accidentally discovered by Charles Goodyear. In 1898 in Germany, Hans von Pechmann accidentally synthesized polyethylene. It took longer for polyethylene to become widely used than for rubber and penicillin, but now it is one of the most widely used food packaging materials. And it is also being used in...
Horsehair: The Stuff of Early and Modern Luxury Mattresses With just a slip in pronunciation, "sleeping on air" becomes "sleeping on hair," and is not taken as a joke, because even today horsehair is the stuff (or stuffing) of several luxury mattresses. These include some of the most expensive mattresses in the world, made by high-class names such as ES Kluft and Aireloom, Hypnos, WJ Southard, Hastens, and others. Besides filling, horsehair is also used in the covers or quilting of a few...
Should I Buy a Mattress Online? You've come to the conclusion that you need a new mattress. The first questions are, "What kind of mattress and bed do we want? What are our needs? What will help us get the restful sleep we really need?" So what kind of mattress is right for us? Is it an innerspring mattress? A memory foam mattress or latex mattress? Should it be a pillowtop model? How about a waterbed or an airbed? When you determine what kind of bed you want, you want to know what the...
Graphite Lump ~~~ Pencil ~~~ Cut Diamond ~~~ Graphite Structure Graphite and Diamond Dust: Pencil Lead and Jewels Several mattresses are described as having foams or fibers infused with graphite or diamond particles. Graphite and diamond are two kinds of carbon crystals. Both are pure carbon, but they differ in the crystalline structure. The structural difference makes diamond extremely hard and graphite relatively soft. Real diamond particles (a.k.a. diamond dust) are very abrasive and...
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