Hi cnc factory,
My thoughts about the Ikea latex mattresses are in post #3 here. My thoughts about the rest of their mattresses would depend on the specific model and the materials in it. Ikea tends to use higher quality polyfoam base layers but lower quality memory foam in their mattresses. They also don’t reveal the source of their materials and whether their memory foam has been tested for offgassing or by who (at least that I’ve seen). In most cases … I would lean towards a local manufacturer which will usually have better quality materials at comparable or better prices.
Diamond is a California wholesale manufacturer (sells through retail outlets rather than factory direct) which in general uses higher quality materials and has better value than most other larger manufacturers and they are also much more transparent about the materials and construction of their mattresses. The mattress you linked doesn’t say the density of the memory foam or the polyfoam used in the mattress so a meaningful comparison with any other mattress in terms of quality or value isn’t possible but the good news is that this information should be available to you either by asking Jeromes (who should be willing to find out if they don’t have the information on hand) or with a call to Diamond directly. Overall they are among the better wholesale manufacturers IMO. A forum search on “Diamond” (without the quotes) will bring up quite a few posts about either them or their mattresses.
Phoenix