Latex as a comfort layer

Q: What is the difference between Pure Latex and Natural Latex?
A: They are not the same as 100% Natural Latex.

How can this get any more confusing?

100% Natural Latex as a mattress component has not yet come down sufficiently in price to make it a common component of mattresses. The cost price to manufacturers of this material is still rather high and will of course be reflected in the price. As viable alternatives, 100% natural latex is blended with other components to produce products that offer a slight compromise in quality but can therefore be offered at an acceptable price.

To distinguish what term means what, this is the [apparant] breakdown:
100% Natural Latex
Premium quality and premium price tag – Has about 2% forming additives and 98% Natural latex
Natural Latex
Has to contain at least 80% Natural latex
Pure Latex
Has to contain at least 20% Natural Latex

To put this into some kind of perspective, these are the minimum quantities and in general pure latex used for mattresses will have at least 40% natural latex with the rest made up of synthetic latex and [UK required] fire retardancy components.

Personally, I wouldn’t worry too much initially about which latex is in the mattress - deciding which is better is a little detail that has to be applied only when sorting out the wheat from the chaff. There are not that many latex suppliers and the production quality is taken for granted to be of a very high standard.  But then, who is to stop a rogue salesman telling you the latex contained in their mattress is 100% natural – when in fact it isn’t.  That should be where your concern lies.

Also as a fore-warning, the ACTUAL DEPTH of latex used in your mattress should be more of a concern to you than whether it is Pure or Natural. Also, is the latex used as an entire sheet or is it placed just in the central area? If you are looking at Latex mattresses then these are the questions that just have to be asked.

There are two ways that latex can be used in the construction of a mattress:
1.As a solid slab of latex – ,
2. As a comfort layer generally on top of a pocket sprung system.

A mattress containing latex as a primary comfort layer will have to be at least 3- 5cm to be beneficial. Your bodyweight has to sink into the material sufficiently leaving the underlying layer{s) and / or pocket springs to offer up the additional support.  When used in conjunction with reflex foam and/or other premium wadding on pocket springs then emphasis will be made towards a comfort bias and the depth may well be just 2.5cm (1″).

The benefits of latex as a comfort layer.
The popularity of latex is growing year on year as people realise the benefit this material has over memory foam and hopefully in the near future the price will come down significantly. Firstly, latex has an instant rebound property and recovers as soon as you move to a different area of the mattress. Whereas, in comparison, memory foam will retain the indent your body made until it cools down and recovers. . Latex does not need to be warmed up by body heat to be effective and does not have the heat retentive properties of memory foam.

In short,  latex is the perfect sleep surface. The lifespan of a premium 100% natural latex is deemed to be well in excess of 20 years. Even pure latex can easily be guaranteed for 10 years. Dunlopillo is credited somewhat to be the market leaders in 100% natural latex mattresses. However, this recognition is reflected in the prices of their mattresses.

One side or two side?
When latex is used as a comfort layer it will more than likely be used on a non turn – one sided mattress. The durability aspect of this component means that there really is no need to have it on a double sided, turnable mattress. Also, latex will never (normally) be used on a cage sprung mattress. Pocket springs or suspension springs  will no doubt be the support system and all complimentary components will be premium. This is also true of the fabric covering. More often than not being entirely microquilted polyester or a blend of poly/cotton with Cashmere, Silk or other extremely soft component. Latex for mattresses is manufactured to be cradling as well as supportive and so the fabric will be chosen to accentuate this property.

100% natural latex in a solid slab should be encased in a wool sheath  – wool being naturally fire retardant.  The covering is usually a knitted jersey and able to be used on both sides. You will find that the depth of 100% Natural Latex will either be 6 or 8 inches in depth. Not only does this keep prices down but because of the superb support and comfort, there is absolutely no need for a traditional depth of 10 inches.

Anything else?
It must be understood that only 100% natural latex without any other component apart from processing additives is the absolute best in terms of quality, but price is usually the inhibitor. Aside from this, 100% Natural latex is not naturally fire retardant and therefore it’s use in a mattress would be illegal unless a fire retardant outer layer was applied [as a wrap - such as wool] to the mattress. Having  natural or pure latex are the next two best options.

Graphite Latex (pure latex) is a product used by the vast majority of mattress manufacturers as a viable compromise to natural latex. It has a high content of natural latex (at least 40%) and expandable graphite has to be added (hence making it a dark grey colour) to comply with fire retardancy regulations. There should be no significant difference in overall comfort. It is also an ideal component as a supportive internal layer when natural fillings are used as primarys.

Talalay is a manufacturing process deemed to be better than the Dunlop method. Which is actually better depends on who you speak to.  I dont know, and I personally wouldn’t be able to tell the difference by sleeping on them. If it helps, Talalay is the most used in mattresses.

As a starting point, Ryan and I have produced two latex mattresses The Sequence 2000 Latex and The Origins Latex 1500. The build and content quality can easily sit alongside many well known branded products and in most cases can be deemed significantly superior.