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Mattress support cores - latex 06 Jun 2017 16:36 #11

  • geesahn
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Hi ea.myers, like Phoenix said no one can tell you which mattress you should get. I'm not the expert like Phoenix but I want to briefly share what I learned with you. My original configuration on our mattress was 2"firm, 4"med, 4"soft and it was way way way too soft. It was ok for me at first but my husbands lower back was very sore every day. I was achy too, it just wasn't right. What I learned through my research is that your soft comfort layer should be just what you need to provide pressure point relief and as thin as possible so you hit the support layers (firmer) before sinking in too far. We switched to a firmer latex mattress 4"firm, 4"med, 2"soft and it is absolutely amazing, amazing for my husband, amazing for me and just simply the best mattress we have ever had in our lives. Ours was Dunlop but I imagine a Talalay with similar firmness would be even more comfortable. I agree with Phoenix, 20ILD does not seem possible for a 6" core - way too soft. Memory foam is a very very different feel than latex, a whole other ballgame so you probably need to try out lots of beds and figure out what you like. Personally, memory foam dehydrates me and I prefer 100% natural materials which is why I went with latex.

Everyone is different but I just wanted to share that the configurations you mentioned were too soft for us. Make sure you can do an easy comfort exchange wherever you purchase from.

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Mattress support cores - latex 07 Jun 2017 18:25 #12

I just ordered a customized latex mattress and am now second guessing my choices. I'm 5' 7" and 115 pounds. A previous mattress caused me to have hip and shoulder pain forcing me to become a back sleeper, but I like to sleep on my side. So it was recommended to me to go with 3" soft, 3" medium, 3" medium all Dunlop with the possibility to exchange one of the medium layers for soft if that was too firm. When ordering I got my layers confused and said soft, soft, medium. He suggested I go with firm on the bottom because the soft, soft, medium would probably be too soft. But now I worry the 6" of soft will be too much and not provide enough support. Is this a good combo to try or should I see if it is possible to change the order? I'm afraid it is already set to ship.

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Mattress support cores - latex 07 Jun 2017 21:41 #13

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Hi! I can only share my experience and you and I are pretty much the same size. I am a side sleeper too. So my kids have a 6 inch firm Dunlop core with a 2" soft topper. Great for kids, very supportive. I find it comfortable but I do feel the firmness right underneath that soft layer. I suspected for myself that it would be better to sink into a medium layer after the soft layer as it would be supportive but not pressing into me. I was right for sure. Then the mattress I was talked into at the store for myself was 2" firm 4" med 4" soft. It was way too soft and I exchanged for 4" firm 4" med and 2" soft. It is amazing. I did try a configuration of 3"soft, 3"med, 3"firm and I really liked that also. I am not an expert but I do think 6"of soft is way too soft. A mattress manufacturer on here responded to my original problem that my configuration was on the softer side of normal but not unheard of. Yours sounds even softer. If you have a comfort exchange then you don't need to worry too much but if you don't I would definitely switch.

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Mattress support cores - latex 08 Jun 2017 11:19 #14

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Hi CFT221,

So it was recommended to me to go with 3" soft, 3" medium, 3" medium all Dunlop with the possibility to exchange one of the medium layers for soft if that was too firm. When ordering I got my layers confused and said soft, soft, medium.


While no one can predict how a mattress will feel to you because of the multitude of individual preferences and differences involved, a combination of soft Dunlop / soft Dunlop / medium Dunlop (assuming all 3” layers) would be a very soft combination and outside of “normal” recommendations, even for very plush products. The original recommendation to you of soft Dunlop / medium Dunlop / medium Dunlop would still be a quite plush configuration, but could be a good starting point. It gives you the option of going to the soft Dunlop / soft Dunlop / medium Dunlop should you find the combination too hard (which again would be a very plush combination), or if you found the combination a bit too soft you could go to a soft Dunlop / Medium Dunlop / firm Dunlop, which tends to be a very popular combination (but of course that is a general statement). There are some companies offering configurable systems who won’t even recommend anything softer than a soft Dunlop / soft Dunlop / firm Dunlop combination out of fear of lack of deep support.

In situations like this, I would start with the guidance provided you from the manufacturer with whom you are dealing, as they will have the best data to reference regarding their products and how they tend to react to people with similar requests / needs/ somatotypes. During a phone call with any company you can also confirm any exchange/return policies, should your initial configuration unfortunately not turn out as well as you had hoped.

I’ll be interested to learn of your decision and progress.

Phoenix
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Mattress support cores - latex 08 Jun 2017 12:39 #15

I ended up switching both sides to soft, medium, firm. Both my husband's and my weights are just outside of the manufacturer's range for this combination (I'm about 5 lbs under and he is 5 lbs over), we decided this would be a good starting point and we would have the pieces that would allow us to test medium-medium, medium-firm, firm-medium and firm-firm under the top soft layer. We have the option to exchange one layer, which should be all we would need to do, if we need to exchange any at all.

Thanks for your input!

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Mattress support cores - latex 08 Jun 2017 16:26 #16

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Hi CFT221,

I think that you made a wise choice! I'll be interested in learning about your new mattress and how they layers are working for you once you've had a chance to sleep upon it or a while.

Phoenix
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Mattress support cores - latex 15 Sep 2017 12:29 #17

  • denlor2
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I am looking to get a king size organic pure latex mattress for my wife and myself. Options before me:
1. - 6" latex base soft; medium; firm; 2" 20 lb latex layer on top; 1" wool. -90 day test period
2. -4"40lb; 2"30lb; 2"30; lb: 2"20 lb - no test period
I weigh 300 lbs and am a side sleeper

Looking for recommendations.
Questions:
a) In option 1, would soft be too non supportive for my weight?
b) can i use my existing box spring. It is rock solid on its sides and firm coiled spring in interior. I would place 3/4" plywood on top?

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Mattress support cores - latex 15 Sep 2017 16:18 #18

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Hi denlor2,

Welcome to the Mattress Forum! :)

I am looking to get a king size organic pure latex mattress for my wife and myself.


Most people that are looking for an "organic" mattress or materials are usually concerned more with "safety" than whether the materials have an actual organic certification and they usually aren't aware that an organic certification isn't the same thing as a safety certification. There is more information about the three different levels of organic certifications in post #2 here and some of the benefits of an organic certification in post #3 here and there is more about the different types of organic and safety certifications such as Oeko-tex, Eco-Institut, Greenguard Gold, C2C, and CertiPUR-US in post #2 here and more about some of the differences between organic and safety certifications in post #2 here and there are also some comments in post #42 here that can help you decide whether an organic certification is important to you for environmental, social, or personal reasons or whether a "safety" certification is enough.

Options before me:
1. - 6" latex base soft; medium; firm; 2" 20 lb latex layer on top; 1" wool. -90 day test period
2. -4"40lb; 2"30lb; 2"30; lb: 2"20 lb - no test period
I weigh 300 lbs and am a side sleeper


I’m sorry, but your descriptions of the mattresses you’re considering aren’t complete, and I think that you may have ILD confused with density.

With your first mattress, I can’t tell the actual configuration of the mattress from the information you’ve provided. You’ll want to list the thickness of each layer, the style of latex (Dunlop or Talalay), the ILD/plushness (if available), and the blend (synthetic, natural, or blended) for sake of comparison.

With your second mattress, I think you may be listing the ILD instead of the density (lb/ft3) of the product. Assuming this, it seems this mattress has a 4” core of 40 ILD (firm) latex, followed by two 2” layers of 30 ILD latex, on top of which is a 2” layer of 20 ILD latex. You don’t list the type of latex or the blend.

Having a higher BMI presents special challenges and generally requires firmer materials (in the support layers especially). This could be firmer latex. The same overall guidelines apply with higher weights though that PPP (Posture and alignment, Pressure relief, and Personal preferences) along with using high quality durable materials that will maintain their feel and performance for longer periods of time are the way to make the best choices. Heavier people in general will need firmer and thicker comfort layers and firmer support layers than those who are lighter and because no materials will last as long with much higher weights the quality and durability of the materials and components is even more important than normal. I wouldn't "rule out" latex mattresses for a higher BMI, and I would base your choices on your own personal testing (if possible). Post #3 here has more information and suggestions about heavier weights that is worth reading.

When you can't test a mattress in person then the most reliable source of guidance is always a more detailed phone conversation with a knowledgeable and experienced retailer or manufacturer that has your best interests at heart and who can help "talk you through" the specifics of their mattresses and the properties and "feel" of the materials they are using and the options they have available that may be the best "match" for you based on the information you provide them, any local testing you have done or mattresses you have slept on and liked or other mattresses you are considering that they are familiar with, and the "averages" of other customers that are similar to you. They will know more about "matching" their specific mattress designs, options, and firmness levels to different body types, sleeping positions, and preferences (or to other mattresses that they are familiar with) than anyone else. Their detailed knowledge of their mattresses and how they fit with higher BMIs, along with a customer base of many people that they can use as reference points, and any exchange, return, or any options they have available to customize a mattress after a purchase can help lower the risk of an online purchase.

Questions:
a) In option 1, would soft be too non supportive for my weight?


As I listed previously in my reply, I don’t have enough information about this mattress to offer any sort of educated analysis of the product. If you can post back with more complete details, I’ll do my best to help with answering this question.

b) can i use my existing box spring. It is rock solid on its sides and firm coiled spring in interior. I would place 3/4" plywood on top?


You’ll always want to contact any manufacturer with whom you’re dealing to become familiar with their warranty requirements for a foundation. Some people do place a thick piece of plywood over an old coil box spring, but this can still have the potential for sagging over time. If you do so, you may also wish to consider the use of a coir bed rug or something similar on top of the plywood to allow for air circulation. And also check to make sure that your bed frame has the proper center support.

Phoenix
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Mattress support cores - latex 15 Sep 2017 22:22 #19

  • denlor2
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The first option is a Sleeponlatex 9" natural latex king size mattress. The specs only say a 6" firmer base and 2"softer layer on top. Plus 1" wool cover. You are right I have mixed up densities and firmness levels and I am more concerned with safety than being organic. The second option is a natural latex memoryfoamcomfort mattress. Both options are Dunlop processes. The second option is 4" 40 ILD 2" 30 ILD and 2" 20 ILD. The second option is unglued layers; the first option is glued layers. Are their sideways and or lengthwise movement problems with unglued layers to your knowledge? I was leaning to the second option in case we wanted to change a firmness level in one of the layers after purchase, but one retail outlet tells me there are movement problems with unglued layers. Not sure if this was just sales talk to convince me to buy their solid mattress or not.

The first option comes in soft medium firm and extra firm. With my weight I woukd assume a medium would be preferable to soft, but sales person seemed to be suggesting the soft.

Any help you can provide in guiding me through this whole new world of mattress choices would most surely be appreciated. I have an older Marshall pocket coil firm mattress that was great, but now I suffer from hip and knee arthritis, so am looking I guess for firm support but soft upper area to relieve pressure points. I know if I goof up I can always buy a topper after the fact to remedy more softness or more firmness, if need be, but would prfer to get things right at the outset.

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Mattress support cores - latex 16 Sep 2017 12:01 #20

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Hi denlor2,

Thank you for that information – it is very helpful and clears up the specifications for me.

The Sleep On Latex is offered in three different overall comfort designations of Firm, Medium and Soft. The Firm uses a 6” core of 44 ILD and a top 2” layer of 30 ILD. The Medium uses a 6” core of 34 ILD and a top 2” layer of 20 ILD. I am unsure of the specifications of the Soft model – you’d want to confirm that with them. The latex used is 100% natural Dunlop. My concern would be at your BMI of an item being too plush or not having enough deep support or enough layering overall to provide adequate comfort, but as you stated the addition of a topper is always a possibility.

The Memory Foam Comfort Presto is I believe the model that you are describing, and that does have the ILDs as described earlier (4” of 40 ILD Dunlop, 2” of 30 ILD Dunlop and 2” of 30 ILD Dunlop, with an additional 2” of Dunlop available at no charge). Their Dunlop is GOLS certified 100% natural. This model has layers which are configurable, as opposed to the Sleep on Latex, which is not (as you mentioned)l and the larger amount of latex may be preferable for someone in a higher BMI range.

Both Sleep on Latex and Memory Foam Comfort are members here of this site which means that I think very highly of them and that I believe that they compete well with the best in the industry in terms of their quality, value, service, knowledge, and transparency. They are extremely knowledgeable about latex and different configurations, and I would not hesitate to recommend them for your consideration.

but one retail outlet tells me there are movement problems with unglued layers. Not sure if this was just sales talk to convince me to buy their solid mattress or not.


Latex itself is quite “sticky” and has a high coefficient of friction, so the layers tend to stay in place quite well (they’re also held in place with the mattress encasement). It may be that once in a while you have to “put a wave” through a layer to assist with alignment, but it’s not that common and personally wouldn’t be a large concern. Component-style systems like this have been around for quite some time and layer movement is not a large complaint.

The first option comes in soft medium firm and extra firm. With my weight I woukd assume a medium would be preferable to soft, but sales person seemed to be suggesting the soft.


I only see Plush, Medium and Firm listed for Sleep on Latex, but they may have an Extra Firm option not listed. While I always suggest a detailed phone conversation with any manufacturer you’re considering to acquire their advice, my concern would be the same as yours with a “too soft” configuration, and you’d want to find out the specifics of those layers before making a choice.

I know if I goof up I can always buy a topper after the fact to remedy more softness or more firmness, if need be, but would prefer to get things right at the outset.


I agree, it’s always preferable to try your best to get the finished product at the comfort you prefer.

Phoenix
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