Have the mattress since about 1 month. She was delivered curled up, making it much more portable. Find I ever good. When unpacking the mattress then stretched out and should only times a few hours to lie unused, after about 2 days it has then developed fully. (So it is at least in the instructions).
The mattress seems to me very soft before, but is very pleasant and it is a great place to sleep. The back problems I had with the old mattress (Well, it was very old) are now gone and I am now fully satisfied.
