I ordered 2 mattresses and receive. 1Matratze unfolded perfectly out of the box and lying on it is very pleasant, rueckenfreundlich and comfortable. We wanted Hardness 3 and feel the resistance as well. The 2nd mattress is not "risen" and not suitable for sleeping, therefore, it has reached more than a height of 8 cm and therefore the reference suggests wrinkles. I sat down with Amazon in connection and I was helped. Conclusion: if the mattress is completely "unfold" it is at the price a bargain, but there is a risk of non-swelling. My two mattresses have only minimal smell the first few hours.
