Hi Tddybear71,
Sanitary mattress and Sleep Designs are the same company. The Sleep Designs name is owned by Sanitary mattress.
Their website seems to be in the process of being updated but they are an Eastman House and Eclipse licensee as well as producing their own line. they have just come out with a line of gel foam mattresses called Elemental as well that are high quality and sold through some select retail outlets
Law tags donât show the layering of a mattress or the thickness or position of the layers but Eastman house does make a Starlight mattress which has a 2" layer of latex in it. This is probably not the one you have though because 2" of heavier natural latex in a mattress would be much more than 10% by weight of the mattress contents. 10% would likely be an inch or so. The 85% synthetic foam would be polyfoam and some of this would be low density soft polyfoam above the latex and some firmer polyfoam would likely be the support core. The 5% fiber would be the fiber in the quilt.
What this means is that any impressions and softening are from lower density polyfoam and fiber rather than latex and it wouldnât even be âfairâ to call your mattress a latex hybrid mattress much less a latex mattress when the latex is a much thinner layer. Many retailers will call their mattresses a âlatexâ mattress when the latex is really only a more minor part of the mattress.
Mattresses all have a prototype which is used to pass the 1633 burn test. A prototype may be a thicker version and once the prototype has passed ⌠then you can âbuild withinâ the prototype using the same materials but in smaller quantities so if you pass a 12" mattress prototype for example ⌠then you can build say a 10" version that uses thinner layers of the same materials.
Given the materials listed on the law tag ⌠I think the âmysteryâ of why your mattresses has developed âholesâ or soft spots (low density polyfoam and fiber in the upper layers of the mattress) has been solved
Phoenix