Hi Stefan,
[quote]I am interested in Morgedal of IKEA.
But I discovered that for brand name MORGEDAL of same dimension and same hardness IKEA has 2 different numbers.
I will be very thankful if I can receive information regarding differences or suggestions for preferences for both MORGEDAL 140 x 200, middle hard mattresses i.e. 702.721.96 and 402.724.09. [/quote]
I’m not sure what country you are in or whether the specs would be the same as in the US but there are some pictures here of the Morgedal and I believe that the difference between the medium and the firm is that the medium uses convoluted polyfoam in the top layer and the firm uses a solid layer of polyfoam.
The most reliable source of information though to confirm all the specifics of their mattresses would be a phone call to Ikea.
Phoenix