After a couple months of use, I regret to advise you that the LFTT Lucas Park is a bit too firm. Perhaps I should have went with the LPTT when comparing with the mattresses in the local retailer, which all have MF, to one with LF only. I am looking to soften it up by perhaps adding a topper.
Your site shows you offer soft, medium and firm toppers in 2, 3 and 4 inch thicknesses. Can you tell me what the IFD ratings are for each of the ratings, as terms like soft, medium and firm are not self-defining. Also, what thickness you you recommend for a back and side sleeper weighing 220? The last thing I want is a topper that simply compresses down and leaves me with the same mattress I have, yet one that simply adds the same degree of firmness wouldn't be any good either. It would help if we knew the IFD of the LF used in the Lucas to begin with, wouldn't it?
The ILD rating for the latex used in the S&F is not information that is provided by the manufacturer.
However, it isn't any different between the firm and the plush models. What changes between those is the density of the polyurethane foam...making one firmer and one softer.
To soften the surface of a mattress that is too firm, the "soft" latex topper is what you will need. The ILD rating can vary between 14 and 19. Latex is extremely resilient. You won't sink through it, even the softer. The firmer latex choices wouldn't do much to relieve the firmness of the mattress's surface feel.
Here's a link to the toppers. 2" is all you need to do the job, do it well, and over the long term.
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