Alsoooo - we had a cold foam mattress with nasty couch Kuhlen and as a true late sleepers we are in the morning then got up quite early because we had the feeling of not being able to lie. Many reviewers write that this mattress is hard - which I would agree. If you plan selectively suppressed, sinks it and also the pelvis, are noticeably. Nevertheless, the overall impression, when you get completely lying on this mattress very firm. I think that however pleasant and have to say that this is the first mattress, where I can really feel that they have different degrees of hardness (pelvic / back). I find very good. The workmanship is very high quality. We are totally satisfied.