So ~3 years ago, I bought the original Casper mattress. It’s now got some serious “sag” (not literally sag, it looks more or less okay, but the foam is clearly breaking down and not as supportive as it used to be). Reading up on things here, I suspect this is because I’m on the larger side, and the 1.8lb poly/4lb memory foam isn’t durable enough for someone my size. (Even when it was new, I sometimes felt like I was bottoming out the comfort layers and hitting the harder poly core.)
So, okay, I want something else… BUT what I do love about the Casper is the latex-over-memory-foam construction. I hate straight memory foam (the heat, the difficulty moving), and while straight latex is fine, I like the cradling/molding effect of the memory foam underlayer. I think it works well with the springiness of latex.
So the question is: Is there another mattress out there with a latex-and-memory foam construction that would be better suited for the heavier individual? The excellent post giving an overview of bed-in-a-box companies suggests that the SleepEZ Kiss would be good for that purpose… but that still has a 4lb “memory foam”-esque layer. Is the “float foam” that they’re using different enough from memory foam that it shouldn’t be a concern?
I’m sorry your Casper isn’t working out as well for you as you had hoped. Your supposition about the performance is probably correct, with the softening of the foam happening sooner than you would have anticipated for your size. The new version of the Casper is using 1.5 lb polyfoam in the core, and the latex on top has been replaced by a high-performance polyfoam.
I agree with you personally – I do like the feel of latex over memory foam. It has a unique comfort.
Unfortunately, I’m not able to keep track of the specifications of all of the mattresses on this forum and in the industry, as this information is constantly changing and is a bigger job than anyone could keep up with. In the Simplified Choice thread that you mentioned, there are a few mattresses using a similar configuration to what you described. The SleepEZ Kiss mattress uses a high-performance polyfoam that is not a memory foam under the latex, and that will have a different feel from traditional memory foam, so only your own testing would be able to determine if you liked it or not. 4 lb for a high-performance polyfoam is a durable material.
The Ghostbed has a similar configuration to what you mentioned. The memory foam is 4 lb, but the polyfoam core is a bit better than your current mattress at 2.0 lb. The Dromma mattress has similar layerings to what you requested, but they provide no meaningful information about the density of their layers, so you’d want to acquire that information before considering them.
There are component-style systems available, like the Presto from MFC (a site member, which means I think highly of them). You could rearrange the layers to have the latex on top in this configuration.
Overall, there are over 100 of the simplified choice products out there, as well as many memory foam component-style systems, but as I mentioned earlier I don’t have a complete listing of those. The list grows weekly! :ohmy:
Overall, the key will be finding componentry that will be of appropriate quality for your specific situation, which will then give you the best chance at have a successful comfort life, so I would always make sure that you find out information listed here so you can compare the quality of the materials and components. Those in a higher BMI range want to be especially prudent in the choice of their components. For those in a higher BMI range, there is more information about selecting a mattress in the durability guidelines here. I know you are already aware of this, but this information is for others who may read through this thread.
If you come across other items, I’ll be happy to comment upon their specifications if you provide them.
Your supposition about the performance is probably correct, with the softening of the foam happening sooner than you would have anticipated for your size. The new version of the Casper is using 1.5 lb polyfoam in the core, and the latex on top has been replaced by a high-performance polyfoam.