Serta Mattress Review

So here's the story, a couple of years ago I split with my husband and he took our bed which had a sealy mattress. I was so comfortable, and actually made my neck and back pain go away. I sure miss that bed. Long story short I had to go buy a new bed and got a serta, big mistake! I've only had the 2 years since the split, and already it's sagging in the middle, my neck and back are in worse shape than ever, and sleeping is tough to say the least.