Still getting back-aches after all these months

[phoenix]

Hi beanbag,

Maybe it is just a firmness issue, but I think the point elasticity is the major difference in feel btw a latex and spring bed.

Hypothetically, on a latex bed, my butt cheeks can sink down while the foam can still press up against the small of my lower back, causing an arch. Whereas on a spring mattress, if the butt part sags down, the lower back part sags down too, and thus doesn’t create as much of an arch.

Does this make sense?

I think I understand what you are trying to get at but I also think it’s an oversimplification of more complex factors that doesn’t take into account the many other specifications of the layers and components that interact with point elasticity and can affect the outcome you are describing including the many variations of latex and springs that are very different from each other, layer or component firmness, layer or component thickness, compression modulus/spring rate, resilience/hysteresis, the compression curve of different materials and components or combinations of materials and components, and the position of the material or component in the mattress (springs are usually used as support components and usually have other materials over them that can play a significant role in what you are describing while latex can be used in both comfort and support layers). In other words if you were somehow able to change only the point elasticity of the layers but everything else stayed the same then it’s not likely that this would resolve the issue by itself.

If you are comparing latex support cores with innerspring support cores (regardless of the materials above them) then there is more information in post #28 here that compares them but this is only generic because it doesn’t take into account the many variations of each that can have a very different feel and response and can be very different from each other.

Phoenix