Got my order on 10-31-19 as was told by Wayfair. Mattress started to inflate as soon as we started to cut the plastic off. It inflated to the 14 inches as soon as the plastic was off! I still waited 24 hours to use. No odor at all! This is the first gel foam mattress I have bought & I am so happy I got it!! I sleep so well, not soar at all when I get up in the morning!! The gel keeps me cool . I hope it will last for many years!!