Very, very comfortable
Both my spouse and I had hip pain when we slept on our relatively new (firm) innerspring mattress so, out of desperation to have a pain-free night's sleep, we went mattress shopping once again. We tried only soft mattresses this time and spent quite a while on each one - five of them - and after a number of minutes on each bed, our hips would start to hurt (mine in particular.) So the salesperson had us try the Blue 500 Plush. Our hips did not hurt after quite a bit of testing time! Sold! Every morning now we wake up SO MUCH MORE REFRESHED. We fall asleep quicker and if we do wake up during the night, we fall right back to sleep. And we wake up noticably comfortable. We actually notice it! We are VERY pleased.