I bought this mattress for my guest room. I was a little tardy in ordering it so I was very pleased by how quickly it arrived (my guest only had to sleep on the old lumpy futon one night) and also very pleased that there was no odor at all. We opened the packaging, waited a couple hours for the bed to expand to it's normal shape (it was vacuum-packed), and my guest was able to use it that night. She said that the bed felt awesome to sleep on (she used it for two weeks) and was very jealous about the price I paid since she had just purchased a $1000 twin-size memory foam mattress herself and, according to her, my guest mattress is more comfortable!I only gave four stars for overall rating because I haven't actually slept on it myself, but it certainly looks much nicer than the lumpy old futon mattress my previous guests have endured. Hopefully, my cooking is bad enough that the new mattress won't be enough encouragement to cause guests to start staying too long!