Because the first two delivered mattresses smelled so extreme Chemicals, had the mattress to be delivered a total of 3 times and I was by the whole settlement more than annoyed. The 3rd Mattress also has a few more days violently "ausgedünstet" and could not, therefore, immediately to sleep on it. I have specially taken up and clarified whether I have to worry about in terms of the smell in this respect contacts with the manufacturer Dunlopillo. Meanwhile, however, all is well and the quality of the mattress is super. I really wanted to have a really hard mattress and have eternal search for the size 160 x 200 cm in H4. Having no local was able to find in large furniture stores in free trade, I bought this on Amazon and at competitive prices. I highly recommend this model unreservedly.