The mattress arrived a couple days prior than the expected delivery date. It is heavy, but my husband was able to carry it upstairs by himself. I purchased it for my daughter, so I can’t truly say how it is to sleep on nightly. She is 12 and says it is comfortable. I have laid on it and it is very soft and comfortable. It expanded quickly and we were able to use it in a little over 24 hours. We didn’t notice a smell. It has only been around a month, but so far no complaints. It is a nice mattress for the he price paid.