Such a comfortable mattress!! Was shipped and delivered in record time. It came in one box and was easily taken out and inflated quickly. No smell whatsoever. It is somewhat firm but does allow some conforming to your body. I previously have been someone who liked a really soft bed but in the last year or so my back would often hurt in the AM. I found that a somewhat more firm mattress has completely eliminated this pain. I purchased two of these mattresses for a daybed in my spare bedroom and found myself sleeping in there they were so comfortable. Which is how I arrived at the decision to order this for the master. Highly recommend.