Natura Twilight Euro Top translated to Aloe Alexis

[phoenix]

Hi jdg0928,

I think I did get a little mixed up with the function of the two layers, but I also expressed myself poorly in some cases. I think I should have stated my goal as configuring the Aloe Alexis in a manner which would give us “medium” to “medium-firm” comfort layer (sinking in) with “medium-firm” support layer (sinking down), not necessarily exactly matching the Natura since those two descriptions seem closer to the terms you use to describe the two layers and are also applicable to other beds we tried and liked.

I would keep in mind that terms like “medium firm” and “medium” and all the similar terms used to describe a mattress are very subjective and are only relative to each other. Someone that is much heavier or sleeps in different positions may perceive a certain material as being very soft while someone who is much lighter may feel the same material as being very firm and even different combinations can have a very different “feel” for different people. The terms are useful to compare two mattresses in terms of an overall impression because it can indicate that one would “feel” firmer than another for most people overall but the terms say little about what the mattress will feel like for any specific person. You can read a little more about the different types of softness and firmness in post #15 here.

I don’t know your partners weight so I can’t really comment on how they would feel on the suggested layering (and BB would likely be closer than I would anyway because they are more familiar with their own mattresses than anyone and a voice conversation can cover more ground than writing on a forum) but your side would seem to be “in the range” although the comfort layers may be a little on the thick/soft side compared to the Natura.

I would also keep in mind that it helps to imagine the layers compressing sequentially when you are trying to predict or imagine how a mattress may feel or interact with a certain body type but in reality all the layers of a mattress compress simultaneously and the more any individual layer compresses the firmer it gets until it becomes firmer than the layer below it at which time the layer below also compresses (again all of this happens simultaneously).

(Btw, Mario said they estimate their BB HD foam provides roughly the same support as a 34 or 36 ILD Talalay latex support layer.)

Yes … different types of foam are measured in different ways (see post #6 here) and IFD in polyfoam is not equivalent to ILD in latex and even different types of latex aren’t equivalent in terms of ILD. Polyfoam can be up to about 20% or so firmer at the same ILD as latex but latex has a higher compression modulus so it gets firmer faster than polyfoam when you compress it.

You certainly are going in a good direction and as you mentioned have good options after a purchase where you can use your actual experience in sleeping on the mattress to make any adjustments if necessary. If you are having any trouble choosing between two layering combinations that are fairly similar I would tend towards the one that was slightly firmer … especially with latex because it is so adaptable and “point elastic” (meaning it can shape itself to the contours of a body very well) that even firmer layers can be very pressure relieving compared to “stiffer” foams.

Phoenix