The mattress core must provide the proper support...
Over the last 20 years, all of our latex mattress designs have made use of a solid 6" latex core, which is necessary for consistent, solid support, and gives the mattress its overall feel.
This is actually the simplest decision to make in layering your latex mattress. Here are some approximate guidelines - A medium core provides plenty of support for side sleepers up to approximately 180 lbs. Those over 150 lbs sleeping on their back, or heavier side sleepers, will want to choose a firm core.
There are two important additional considerations. First among these is personal preference, which primarily comes into play for those in 10 to 20 lbs of these suggested weights. Those that enjoy the feel of a softer mattress can choose a medium core, and conversely, those that enjoy a firmer feel will want a firm core.
The second consideration is the type of latex used for the mattress. The stated guidelines refer to the 100% natural Talalay latex used in our mattresses, using the firmness ratings determined by Talalay Global, the manufacturer of the latex. Dunlop latex is not as conforming as Talalay, giving it a denser and firmer feel, which simply put, is not as comfortable as Talalay latex.
We suggest that you avoid the common option sold online using three 3" layers of soft, medium and firm. The reason for this advice is that you're stuck with 3" of soft, which, while appropriate as a conforming layer for someone weighing about 120 lbs, is far too soft for most, and when this layer is moved down to the bottom or middle of the mattress, does not offer enough support for anyone over about 150 lbs.
The design of the comfort layer creates the magic in a latex mattress...
With the appropriate support from the mattress core, the remarkable comfort of natural latex, particularly Talalay latex, reaches its full potential in the conforming comfort layer at the top of your mattress.
This is the layer designed to sooth those aches and pain, to let your body let go and fully relax, and to relieve any pressure points you previously had at your shoulders and hips.
Sounds wonderful, doesn't it, and with the appropriate firmness for your size, weight and sleeping position, the feel is pure magic. Our Nu-Lex mattress line offers the most sophisticated layering designs currently available in the natural latex mattress marketplace. We offer three distinct choices for creating the perfect comfort layer in a latex mattress, featuring 2", 3" and 4" options, all sitting on top of a solid 6" 100% natural Talalay latex core.
As an example,this photo show our most popular mattress, the Nu-Lex 10" 100% natural Talalay latex mattress.The reason for its popularity is simple, a full 10" of natural Talalay latex creates a mattress with a very plush feel, and the addition of a second 2" top layer creates a 4" comfort layer, which allows this mattress to be fine tuned like no other mattress currently manufactured!