It’s a lovely mattress. Easy setup, no funny smell, and rises in a reasonable amount of time. Once the plastic was cut, the mattress sprung up almost instantly. I gave it a few hours to inflate but it had reached the full 12" depth almost right away. I never would have believed a mattress could actually feel so good! Where has this been my life!!! I start out sleeping on my side, then turn over onto my stomach, wake up often on my back. This mattress is SO wonderful for any way I sleep or relax! I will never go back to a “spring” mattress again! Overall, I’m very happy with my purchase and get it! You won't regret it!