hard Dunlop latex mattress for lower back pain

[phoenix]

Hi Dag,

You got me Phoenix; I see the short sentence now: “All raw Talalay and Dunlop latex have naturally occurring flaws which include small tears, air pockets, patches, and changing surface textures.” I totally missed it as I was looking for some explanation. I am sure I am not the only one complaining about the quality. It just looks pretty bad comparing to the other 3 latex foams we received from them, the difference is big.

I really wasn’t trying to “get” anyone … only provide accurate information

If you talk with many manufacturers … they will tell you that there can be significant differences between batches of latex they order and even individual layers in each order. As a matter of fact … you can see in post #2 here that one of the biggest reasons some manufacturers cover their latex (or are considering doing so) is consumer perception about the appearance of some latex layers that are perfectly good.

“Changing surface textures” - I am not sure what is qualified in here. Maybe the cut out and glued in different foam portions to replace foam gone bad during the manufacturing? There are few of them and are overlookable.

All Dunlop latex has a range of firmness across the surface and different surface “textures” as well depending on where in the layer it was cut from (the parts of a molded core that are closer to the mold will have a skin for example). These are not normally indications of “quality” or performance.

I just want to ask you, how are the ILD’s determined? Is it possible one 9" foam would be cut into three different 3" ILD’s?

Not all Dunlop latex is tested for ILD but those that are have a range of ILD across the surface because Dunlop isn’t as consistent as Talalay. You can read more about ILD / IFD and how it is measured (or not) in post #6 here.

A single piece of foam can be zoned into different ILD’s yes either by using a certain mold with different pincore sizes or patterns or using various surface modifications or cutouts inside the foam or by fabricating the foam into certain sections and gluing them together.

Phoenix.