I hear ILD all the time when salespeople promote their memory foam products. What does it mean, and how does it relate to memory foam?
It means Indent Load Deflection. As the name suggests, it has to do with the material’s ability to deflect load or weight, in other words, the material’s “springyness”. It has nothing to do at all with memory foam, since the very nature of memory foam actually contradicts any claims of “springy” characteristics, since memory foam is supposed to mould to your body’s shape. Thus, when you hear sales talk referring to “high-ILD”, these are just marketing ploys.
