I replaced my mattress with this one and I am so glad I did. Thjs mattress is just right and so comfortable. My back and sudes always hurt when I slept on mine after using this mattress I do not have them aches and pains anymore. The top material is so soft. This mattress is very well made. I couldnt have got a more comfortable mattress than this one. 
It comes vacuum paked in a box and when you get it out and remove the plastic it expands to be a very comfortable mattress. I love this product and I highly recommend it to anyone.