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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 10 Feb 2014 18:55 #31

  • dn
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On second thought, you're right. Way easier to cut the latex first, and THEN explain what you did :)

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 16 Feb 2014 22:01 #32

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Just an update.. Swapped out the medium for the firm at the bottom layer under the shoulders. All else the same. Curious the difference.

Phoenix, you said there were some nuances to a dominating layer... I still have one in the hip region, although I plan to circle back and try with/without it again. Care to elaborate as to the nuance?

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 17 Feb 2014 01:15 #33

Hi dn,

Dominant layering can have a very different "feel" to a more traditional progressive layering where the softest layers are on top. It provides a firmer sleeping surface and the surface foam compresses less than it would if it was a softer layer and tends to "bend" more into the softer layer below it so it can still provide good pressure relief and "give" under the pressure points (as long as the dominant layer isn't too thick and prevents the softer layer below it from "coming through" or compressing enough).

It is a good solution for people who prefer a firmer, "crisper", or less "mushy" surface feel or greater freedom of movement and don't like the feeling of sinking in directly to the top foam layer as much but still need good pressure relief that comes from underneath.

The "feel" and performance of dominant layering can be "nuanced" or changed a lot depending on the thickness of the dominant layer and it's firmness relative to the ILD of the layers below it and the thickness of the softer layers underneath. It can reduce the amount that the heavier parts of the body sink down into the softer layers of the mattress (especially if the softer layers underneath aren't too thick) but still provide good pressure relief under the pressure points (again depending on the thickness of the firmer layer).

In some ways it's similar to an innerspring that has a variable spring rate that is softer with initial compression and firmer once the soft section of the spring is compressed and that has one or more layers of foam above the spring that are firmer than the softer part of the spring. It would be fair to say that it's a different kind of softness with firmer overtones.

Some examples of other posts that talk about dominant (or dominating) layers in one form or another are here and here and here .

Phoenix
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Last edit: by phoenix.

Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 17 Feb 2014 08:22 #34

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Hi Phoenix,

Thank you.

With a bigger budget, it'd be fun to experiment with different dominant layer schemes. I can see there would be a very wide range of combinations.

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 17 Feb 2014 14:50 #35

The "feel" and performance of dominant layering can be "nuanced" or changed a lot depending on the thickness of the dominant layer and it's firmness relative to the ILD of the layers below it and the thickness of the softer layers underneath. It can reduce the amount that the heavier parts of the body sink down into the softer layers of the mattress (especially if the softer layers underneath aren't too thick) but still provide good pressure relief under the pressure points (again depending on the thickness of the firmer layer).


At which point is a layer typically too thick or too thin to be effective as a dominant layer or get the effect of the softer layer underneath it?

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 17 Feb 2014 15:36 #36

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@CentralPA and Phoenix,

Though I'm positive there are a myriad of combinations, Phoenix nailed why I am doing it (particularly under hips). I was having pressure point pain in my hips, and I acquired a softer layer of latex. I felt that with the softest on top, my hips were borderline sinking in too far again borderline causing some lower back discomfort. I switched them around and found my hips didn't sink as far and I fot excellent pressure point relief. That was a 3" layer of soft over a 3" layer of super soft.

I previously, also working on eliminating the hip ache, had a prior favorite which also had a similar design. I had a soft talalay (24 ild, 3") on top, under which I had 3" medium dunlop, under which I had 3" soft dunlop. It was my most favored design, until I got the softer dunlop and did the above.

While I've got all 3" layers, they certainly worked for me as Phoenix described. I'm sure you could do fun things with 1", 2", and 3" dominant layers on top, and depending probably 1" to 6" or deeper beneath, depending on how far ild's are apart.

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 17 Feb 2014 17:12 #37

Hi CentralPA,

At which point is a layer typically too thick or too thin to be effective as a dominant layer or get the effect of the softer layer underneath it?


There really isn't a specific answer to this because there are so many variables (including body type, sleeping position, the type and characteristics of the material itself, and others). All the layers or components of a mattress will also affect all the others to different degrees so it will also depend on the sensitivity of the person to design changes and where they are inside what I call the "princess and the pea" to "I can sleep on anything" ends of the range.

If I was experimenting with this though I probably wouldn't go much thicker than a 3" dominant layer but it really does depend on the design goals of your mattress and the outcome or "feel" you are looking for.

Phoenix
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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 20 Feb 2014 22:01 #38

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Mostly notes for myself, but I've switched the shoulder zone to (top to bottom) super soft / super soft / soft (exchanged medium bottom layer for a soft bottom layer).

Medium base was better than firm base in shoulder zone.

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 11 May 2015 15:21 #39

I am wondering if dn could provide us with any updates, or if anyone else has tried this and can share their experiences?

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Anyone experimented with DIY zoning like FloBeds vZone / Obasan / green sleep Europe 11 May 2015 17:05 #40

Hi Bazainga,

Hopefully dn or any of the other forum members that have experimented with zoning will see your post and share their comments as well.

I would keep in mind to be somewhat cautious about using other people's experiences on a mattress (either positive or negative) or a particular zoning system as a reliable source of information or guidance about how suitable a mattress may be for you and in many cases they can be more misleading than helpful because a mattress or zoning system that may be a perfect choice for one person in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) may be completely unsuitable for someone else with a different body type, sleeping position, or preferences and sensitivities to sleep on (see post #13 here ).

There is also more information about zoning in post #11 here and the posts it links to that may be helpful as well.

Phoenix
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