Diamond mattress Generations Heritage Luxury - opinions?

Mattress Talk
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I’ve been lurking in the forums here for a few weeks in my quest to avoid yet another disappointing mattress purchase. I appreciate the wealth of information here.

TLDR version - I’m looking for reviews/feedback on Diamond’s Generations Heritage Luxury mattress.

One of the key things that my wife and I have been looking for is a mattress that is comfortable for more than a couple of years and therefore have been looking for a mattress with a significant amount of wool and latex in the comfort layer.

So after visits to numerous mattress retailers, we stumbled upon a newly opened boutique mattress store that carries primarily Diamond mattresses. Diamond seems to focus on midrange mattresses but we felt their Generations Heritage Luxury medium felt great and checked all the boxes we were looking for.

The brand is new to me. I started researching and found virtually no reviews online - the company is almost a ghost in social media. To make matters worse, the Gernations mattress web pages can only be found via search engine, they are not in the nav of the Diamond mattress website. I found one review/comment that criticized the company for misleading information on the mattress contents so I took a look at the mattress tag, which lists the following:
-Latex Rubber 52%
-Polyurethane Foam Pad -37%
-Textile Fiber Pad - 5%
-Rayon Fiber Batting - 4%
-Eco-Wool 2%

The build on the website lists the following:

  • Hand-Tufted Natural Tencel Fabric
  • 3" Supportive Natural Latex
  • Hand-Crafted GOTS-certified Wool
  • 1,386 Micro Wrapped Coils
  • 9-Series Nested wrapped Coils / FE
  • 16" Profile Height
  • Medium Feel
  • Green, White
  • 20-Year Warranty

If I do the math, there is 3" of PU foam that I wanted to avoid due to longevity concerns. Am I reading too much into this?

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Diamond Mattress Company - Generations 2.0 Heritage Luxe
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Hi there sleeplessinco,

Welcome to The Mattress Underground. Thanks for your question.

I am familiar with Diamond Mattress. They produce a wide range of mattresses, from natural and organic builds to their Technogel, Grid Mattresses and Autopilot series. I’m personally not a big fan of gel, grid, or cooling fiber marketing gimmicks, but I will say that Diamond does make some very solid mattresses, particularly in the hybrid and natural categories.

I’ve found their Ethos line and natural hybrids to be among the most comfortable in their price and materials category. One important thing to understand is that Diamond manufactures exclusive versions of their mattresses for various retailers. A friend of mine owns a mattress store in San Diego, and Diamond actually designed a specific model just for his shop, tailored to stay under certain weight limits for more affordable shipping. It’s a great mattress, but you won’t find it listed anywhere else. This is similar to what you see from big brands making exclusive lines for Macy’s, Bloomingdale’s, Raymour & Flanigan, etc. Diamond does this for retailers like City Mattress, Sleepbasil and others. Some models are nearly identical, while others vary slightly.

Now, for your concerns with the Generations Heritage Luxury model. The lack of consistent product listings and transparency in online descriptions is a valid issue. If you compare multiple listings across retailers, you’ll notice differences in the build, like a polyurethane (PU) foam pad being above the microcoil layer in one version, and completely absent or relocated in another. That inconsistency can definitely make it difficult to comparison shop or verify construction details. This may be by design, or deliberate requests by the retailers who sell them. Reasons may that one retailer believes the addition or deletion of a layer may make their version more desirable, more completely natural or better from a marketing standpoint.

The contents listed on the law tag are required by law to reflect actual materials used by weight, not necessarily by thickness or feel, and they can be a bit misleading. For example, 3 inches of latex may weigh less than 1 inch of high-density PU foam, especially if the foam is denser. The model you are considering states this on the law tag.

Latex Rubber: 52%
Polyurethane Foam: 37%
Textile Fiber Pad: 5%
Rayon Fiber Batting: 4%
Eco-Wool: 2%

This does suggest PU foam makes up a significant portion by weight, which might not align with your goal of minimizing synthetic materials for longevity. While you are not reading too much into it, this is why you do research so you dont have regrets later. The build listed online is likely a marketing spec sheet, not the same thing as the actual material breakdown. Here is the mattress at SleepBasil

I found this on the Diamond website, not easy to find actually. No mention of PU at all.

From what I just discovered, the Generations Series offers several levels, Heritage (does not appear to have PU) Legends, Legacy and Traditions (appear to use polyurethane).

If you’re trying to avoid polyurethane foam altogether or limit it significantly, you might want to keep looking or at least push the retailer for a full spec sheet with layer-by-layer breakdowns, including thickness and materials used. Or you can ask if the mattress can be made with a layer of latex rather than the polyurethane. You could also contact Diamond directly. Sometimes they’re surprisingly forthcoming if you’re persistent, and they may tell you who orders the mattress without PU altogether in your area.

As for the 20-year warranty, it’s certainly a sign of confidence, but like with any long warranty, the fine print matters. Many warranties only cover specific types of defects, like sagging beyond 1.5 inches, and require things like proper foundation use. I have heard some wild stories about foundation use. One famous company out there suggests you buy their foundation, but in fact it does not meet their requirements for their warranty. So try to figure that one out! So while the warranty a nice perk and sign of confidence, I wouldn’t let the warranty be the deciding factor.

Hopefully this helps a bit.

Maverick

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Thank you for the detailed response and apparent confidence in Diamond as a company. I did pickup on the fact that they seem to do a significant amount of contract manufacturing.

Sleep Basil is the store local to me where I looked at the mattress - they seem like good people.

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Yes, they seem to have a good reputation. I would ask them about the differences in the different Generations mattress versions. Now you know that they come with and without the polyurethane. Diamond makes a very nice mattress though. When I tried it at the LVM convention last year, I was impressed with their ethos natural line and some others in their “all/mostly natural” showroom.

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I just came back to this, as while I understand your point about densities vs. foam thinkness, the bulk of my research indicates that most of the latex foams are of a higher density/weight than the PU foams. Am I missing something?

Thanks again

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No, you are not missing anything. You’re correct that in most cases, latex foams, especially natural or Dunlop, tend to be denser and heavier than standard PU foams. That said, there are exceptions where certain types of latex, particularly softer or more aerated versions, can weigh less than some high-density PU foams. So while the general trend supports your point, there are situations where the comparison can go the other way.

When you look at the law tag again, it seems to show that latex makes up the bulk of the weight, but again, that doesn’t always reflect how thick or dominant each layer might feel. My main point was that the law tag tells you the weight percentages, not how much space or support each material contributes.

Thank you revisiting this. It’s a subtle but important distinction.

I made some observations, I dont know if it is a perfect example, since they do not really tell you the thickness and densities of the layers, so this is mostly and educated speculative guess.

If 3 inches of latex weighs about 60 pounds, then the polyurethane foam layer would weigh around 42 pounds. The thickness of the polyfoam depends on its density. For example:

At 2 lb density, the foam layer would be about 6 inches thick

At 3 lb, about 4 inches thick

At 4 lb, about 3 inches thick

At first glance, these thicknesses might seem off, especially 6 inches of polyfoam, since 2 lb density foam is typically preferred in higher-quality mattresses, often starting around 1.8 lb density.

However, when you examine the mattress layers more closely, like those shown at City Mattress or on the Diamond website, you’ll notice that models with a polyfoam layer also feature a perimeter foam encasement made from polyfoam, which is usually 3 to 4 inches thick. If the other polyfoam layer is about 2 inches thick, this adds up to roughly 6 inches of 2 lb density polyfoam in total, which aligns well with the weight and thickness estimates.

So, while it may not look like there’s a single 6-inch polyfoam layer, the combined layers and encasement explain the overall thickness and weight.

And makes the law tag seem more viable.

Crazy stuff.

Maverick

** when I looked at the versions that did not have the polyfoam, the description of the mattress indicated that the coils offered edge to edge support. I am a believer that edge to edge coils last long and are more durable for the long run. I thought I would just throw that in. It is hard to say exactly, as the pictures do not always represent exactly what is in the mattress. I was just reading from their descriptions. If, for example, the versions that do not have any polyfoam layers, but still have the perimeter foam encasement, that encasement will show up on the law tag as a hefty percentage of polyfoam. It certainly would be a hell of a lot easier if they would simply list the thickness and density of each layer, and if it is perimeter foam encased or edge to edge coils without struggling to figure it out.

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We are very interested in the Generations product with the Tufted topper – very comfortable!

Looks like Diamond Black has the same option but no store has BOTH to compare.

Your friend store in San Diego – which one? We would love to visit them.

Living Spaces - Artisan
Mattress Pavillion - Generations Versailles (they actually have 4 versions on website?)
Diamond direct - Traditions 2.0
Diamond direct - Black Elite with quilted euro top

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