Have you heard of the revolutionary sleeping surfaces that are out there? Latex Foam Mattress Toppers have made a big entrance into the world of high-technology sleeping materials. You can save a lot of money by keeping your old mattress and making it feel even better than it did when it was new. With latex foam you can make your soft mattress firmer or your firm mattress softer with the great feel of latex.
Foam toppers come in many different types of materials. People have been using memory foam for many years but memory foam has a tendency to make your body feel really hot and many people don’t like the sinking feeling of memory foam. Memory foam is also known to keep an impression of your body over time making your bed not feel the way it did when you first experienced it.
Latex foam toppers, unlike memory foam, keep your body much cooler and are very resilient. People have many choices to make when buying a latex foam topper and it can be complicated for some. These considerations are outlined below to help guide you better in your next reading:
Type of manufacturing process: Dunlop or Talalay
100% Natural or Blended
Made in USA or outside of USA
Firmness or ILD
Thickness: 1 inch; 2 inch; 3 inch
Cost
Latex can be categorized according to what type of process was used to make it. So why does that matter? There are two widely known processes of manufacturing latex foam: one called the Talalay process and the other is the Dunlop process. From its name, Talalay latex foam is processed using the Talalay technology while Dunlop latex is processed using the Dunlop technology. The two processes produce two different latex foams that differ very much in their feel.
In the Talalay process, only a small amount of latex compound is poured into the mold. The mold cavity is vacuumed to remove gaps in the mold and perfectly distribute the liquid foam and create a consistent airy, open cell structure. The foam mixture is then flash frozen to lock the cell structure in place and to prevent the particles from settling.
In the Dunlop process, the latex compound is poured into the mold and there is no vacuuming or freezing stage that occur. The particles settle by gravity and the result is a denser product that is less airy and feels not as consistent as that created from the Talalay process.
Because of the vacuum plus freezing stage involved in the Talalay process, Talalay latex can be made in a wider firmness range, which makes it available to a wider group of sleeping consumers. The feel of a Talalay foam is also superior to that of a Dunlop foam -therefore it is better as a mattress topper while Dunlop foam is usually a more ecoonomical choice to make as base or bottom component of lower-end mattresses.
Latex foam can also be categorized according to how much of it is pure natural rubber. You’ll read or hear terms like “100% natural latex foam” and “blended latex foam”. A 100% natural latex foam contains naturally derived latex in its entireity while a blended latex foam contains some naturally derived latex and some synthetic latex in properly defined proportion. So why does it matter?
Naturally derived latex (Natural Rubber Latex NRL) is extracted from rubber trees that are scarred on their trunks to give out sap called “rubber milk.” Rubber trees are a renewable resource but are limited by the amount of plantations available. The collection of this natural material is a slower process as well which limits the supply and makes it a more costly choice.
Synthetic latex is more widely available than natural latex and includes styrene-butadiene copolymers (SBR latex), Polychloroprene (CR), acrylic polymers, vinyl acetate polymers, vinyl acetate-ethylene polymers, Acrylonitrile-Butadiene Copolymers (NBR Latex), vinyl chloride polymers and copolymers, polybutadiene and polyisoprene. SBR is the most commonly used synthetic latex.
Natural latex is a great choice for people that have a passion for environmental concerns. The problem with natural latex is that the feel is not as consistent as that of the synthetic type of latex and has a tendency to breakdown faster than the synthetic latex foam.
Some retailers of these foams make it a little confusing (maybe purposely?) and call their product “natural latex.” Some consumers can easily fall for that thinking it is purely natural but unless they claim that it is made 100% with natural latex then the foam product may be blended. Some mattress manufacturers claim that their mattresses are “100% latex” but all that means is that there are no other types of foam in their mattress to fill the edges of their mattress. Some consumers can easily be mislead that “100% latex” means purely natural.
Not that there is a real issue with blended latex but majority of consumers don’t appreciate buying something different from what they thought. Not to mention, “100% natural latex” foams cost much more than a blended latex foam.
It is also important to know where the foam is made. The cheaper latex foams are usually made outside of USA. And why does that matter? In the USA the govenment enforces stricter regulations on manufacturing consumer goods. Outside of USA where these latex foams are also manufactured, there’s not much control over the quality of production like what harmful chemicals or processes may have been involved to produc them. Think about it: you’ll be spending a third of your life sleeping on these foams and your lungs is practically next to it!
When choosing a latex foam mattress topper, there are two other important considerations left: thickness and firmness. Talalay latex foam mattress toppers generally come in 1 inch, 2 inch, and 3 inch thicknesses and the firmness available ranges from 14 ILD to 44 ILD. The “ILD” or Indentation Load Deflection is a standard unit of measure that is used globally to suggest the firmness of a foam. But while it is supposedly a standard unit of measurement, beware that because of the density factor and the fact that a Dunlop foam is denser than a Talalay foam, the same ILD’s between these two foams don’t equate perfectly in feel.
When shopping for the right mattress topper, it is best to find a company that offers the full range of thickness and ILD’s so that you don’t get steered to buy something that they have that may not necessarily be what you need. Many of the smaller companies don’t sell all the thicknesses and ILDs due to the high cost of stocking them all. Talalay foams are very hard to find locally and if you want to find a good source on the Internet you might want to look for 14 ILD because most of the smaller companies don’t stock it. This will help you narrow your search down to the ones that carry a full selection first.
Just a word of caution: there are a lot of companies that sell latex foams so you must do some research. You will find that good latex does come with a price and that the best latex is made in the USA. Don’t be afraid to call the company that you are thinking of doing business with and asking them details about their product. If they don’t clearly disclose some or all the information then keep that as a warning sign their product might not be of the highest quality.