I ordered this mattress on the 15th, it arrived on the 17th...that was great. I took it out of the box and 3.5 hours later it was fully expanded, odorless and ready to sleep on. It gave me the best nights sleep Ive had in many, many months. I am completely satisfied with my purchase and highly recommend the purchasing of this mattress. One of my roommates is going to order one for herself. 5 stars was not gratuitous, it earned every one of them.