The only thing I can complain about this mattress is the slightly long delivery time: 13 days with Prime I find it quite long. Otherwise, I am very satisfied. Once off the front: On my last mattress purchase I have two mattresses returned because they were too uncomfortable. The third, relatively expensive mattress I only remember because I had to look any further get tired and it was not as uncomfortable as the other. On this mattress I have now more than 10 years does not really slept well, because I thought in horror because again have to buy a new mattress, especially since I usually rather poor sleep even with my ample hotel stays. But lately I am constantly at night or in the morning woke up early with back or sciatic pain, so now at last had a new mattress ago. For ages I've googled and read reviews. At the store to try a mattress me does not use much because I realize only after several hours if I sleep well on it or not. For pocket spring I decided, because I do not really always warm, my bedroom is usually very cold and I do not like are soft. In addition, I sleep on both the side and the back. Because this mattress had so many good reviews and the possibility is still low, I decided to test it. It also gave them the hardness 2.5. The hardness of 2 is usually too soft to me, but hardness of 3 came to me for my 65 kg but too hard a little bit ago. As I said, unfortunately, I had to wait 13 days, until the mattress was. Then she had to lie still for 2 days to to 'unfold' before I could use them. As I unpacked them, she was still completely flat (Caution! Once you cut the plastic film, the mattress unrolls on its own). However, after 2 days they had reached a height of 18 cm. A very big plus for me is that the mattress is absolutely no smell of itself. The first time I was put on it, I held it initially fixed for a bit too. But then I just slept wonderfully on. Whether on the side or on the back, it is incredibly comfortable. I slept through the night and early morning hurt anything. I can only hope that the mattress lasts forever long, so I do not have to eventually looking after a new. Another tip for the manufacturer: carrying handles on the sides would simplify the handling of the mattress.