It only took about 12 hours for the mattress to reshape. One tip though - make sure you put it in a room where you can open the windows for a while. The chemical smell is sickening and takes a few days to go away. Excellent quality and a fabulous price.
Needed a new bed fast for extra room for guests coming for holidays. This mattress was the perfect choice. Great value. Shipped quickly. Easy to open up. I was very happy with the firmness of the mattress. Some foam mattresses claim to be firm but are just squishy and sink too much. This one actually lives up to its name. I like a firm mattress, and I have slept on it several times to try it out. My guests all said it was great and they were all surprised a foam mattress could be so comfortable. My friend Adam, who is a fitness instructor and very active told me he loved sleeping on it because it gave his back really great support. I would just warn anyone who prefers a softer mattress that this mattress is firm. It gives a little when you actually lay on it, and it is very comfortable, but for those who like soft, pillow-like mattresses that you sink into, this would not be a good buy.
I love memory foam mattresses and I am only giving this one an average rating. Why?, because I can not use it the way I planned. All my full sized beds are platform beds and this mattress is about 2 inches to large and will not fit inside of the beds (tried it on 2 different ones). So now I have a mattress I can not return even if I could roll it up. My only options are to buy a box spring which I do not want, try to sell it to someone else, or give it away. I do not like any of these options. Oh well.
I love the mattresses I recently bought. They are very comfortable and my company loves them! The only thing I had trouble with was the scent due to shrink wrap and storage. Had to let them breath and ventilate room 3 weeks or more until the sharp plastic smell was completely gone. I love the mattresses in spite of the scent which is now gonel.