I received this mattress on the 20th Nov, it is now the 10th of Dec and it still smells awful. This is for our spare room so luckily I have not had to sleep on this with the smell still present, its a really rather awful chemical smell. The mattress is really hard so have bought a topper which has not yet gone on as I am still trying to dissipate the smell.  It seems some have been lucky and not had this issue.