After years on a mattress hardness grade 3 or 4, I was (normal weight, Seitenschläferin) at this mattress rather skeptical. However, as I often poor sleep, I wanted to give her a chance. For me, this mattress is wonderful. I sleep very well on it. When I sit down on the bed, it is very unusual and rather uncomfortable, but beds are indeed there to sleep and not to sit. :-) Springs listen and not feel you and the mattress also has a good amount. Very good, I like that you can settle and wash the reference, that is not the case with most mattresses. Before first use you should give way, the mattress 24 hour time to unroll finished.