New Mattress Woes- too soft? too firm? looking for advice to remedy

[sleeping]

@Phoenix

Hi sleeping,

Remedy… imo… for front sleeping would be a thinner transition support layer (or upper/lower body zoning), and a firmer support core… or start over. I’m puzzled as to why someone would send you more toppers… maybe that 32 ILD support core is firmer than it looks and worth keeping?

Just to clarify … IFD measurements for polyfoam are not the same as ILD measurements for latex and the two are not equivalent because of different methods of testing. 32 IFD in polyfoam would be the rough equivalent of a higher ILD with latex (probably in the range of 20% higher). Post #4 here and post #6 here has more about the differences between them.

Phoenix

Hey Phoenix,

It seems that ILD and IFD are the same measurement method… but that the test sample thickness must be specified the same if one hopes to compare surface firmness ratings. If the 32 ILD rating is for 4" of poly foam, then that foam would be firmer than a 32 ILD rating for Latex foam rubber based on a 6" test sample. If roughly 20% firmer as you suggest, then that would be a better support core firmness.

Changing up the topper(s) might then help… thinner/firmer for front sleeping.

zzz