Hi swisstrix,
Post #2 here should help. Keep in mind that none of the lists in the forum are “recommendations” but only options and possibilities (many with comments attached) that have weeded out the worst options. It’s always important to make sure that no matter where you buy that you are able to find out all the layers of the mattress you are considering so that you can focus on the materials in the mattress which is the only way to know it’s quality and value.
Phoenix