I recently recieved the Serta Perfect Sleeper mattress and I have had the best sleep on this mattress since I recieved it. I can't even explain the feeling of sleeping on all this goodness and comfort of this mattress. This feels like I'm sleeping in a soft cloud and don't even want to get up out of bed. This mattress has made my back pain feel so much better also. I have got the best sleep on this mattress. It's nice and thick. The mattress is made with high quality material made to last a lifetime. It's heaven sleeping on the serta mattress, I would also definitely recommend this mattress for people who suffer from back pain, it has definitely helped me and I get a good night's sleep.