Mattress Forum

but...

From

http://www.whatsthebest-mattress.com/guide/latex-foam.html:

Types of Latex

Talalay latex:

is the process by which latex is made. It can be either natural, synthetic or a blend of the two. The difference is that natural latex has a lot of impurities in it which is only natural, so it breaks down much sooner than the mix.

Synthetic vs. Natural latex ...

The reason some companies combine the two is so that their product can offer optimal performance.

From

http://www.whatsthebest-mattress.com/guide/polyurethane-foam-mattress-101.html

Polyurethane Foam Mattress 101

...A mattress which contains properly used polyurethane foam can provide a comfortable surface with all three of these properties. ...Mattresses perform better based on three factors: durability, comfort, and support. Foam also offers the benefits of being noiseless, dustless, and resisting crumbling and matting. Polyurethane foam does not aggravate the majority of allergies and lacks a residual odor. It also has an open cell structure that lets the material breathe and reduces the chance of mold and mildew infestation.

From

http://www.whatsthebest-mattress.com/guide/latex-mattress-101.html:

Natural latex is said to sleep "cooler" than synthetic latexes

While Talalay process foams are made from natural rubber, they may not be organic or completely natural, as often advertised. This is because some curing agents are also required in the process, and liquid rubber is often stabilized with ammonia. Depending on the curing agent, the rubber will not be completely natural. However, the product is a great deal more natural than many completely artifical foams.

from

http://www.whatsthebest-mattress.com/forum/were-going-sleep-ezi-think-ive-got-few-more-questions/28103-0-1.html:

100% Natural Latex/All Natural Latex/Organic Latex

is a blend of mostly natural Latex. It's more expensive because it requires more harvested natural Latex and is more troublesome to process. Being mostly natural Latex, its processing into Latex foam rubber is made more difficult by the exclusion of synthetic Latex, and likewise, its Latex foam rubber does not inherit the desireable characteristics of synthetic Latex: more consistent, more resilient, wider firmness range, less prone to body set, more durable, less expensive, and perhaps other arguable traits

From

http://sleeplikethedead.com/mattress-reviews-latex.html:

In addition, all-natural latex appears to perform somewhat better than the blended variety in regard to longevity and resistance to compression / development of body impressions.

Foam-over-latex mattresses, however, tend to have low owner satisfaction (60%) mainly because their foam tops tends to compress, wear unevenly and create body impressions.

Thoughts???