I did a lot of research for a perfect bed. I've had a Serta bed set before for 12 years and I'm glad I stayed with this brand. I sleep very well and no more back aches. I bought this bed site unseen and couldn't be more satisfied. I'm a firm believer in reading reviews. Most people are honest if they are not happy. I'm very happy with my new bed
The mattress sagged from the very beginning. Not hugely - you wouldn't notice it on a photograph. But lying in the bed, in the middle, it felt like it was a little uphill in both directions. That made it unacceptable - we returned it. Also, the pillowtop was too much for me, though others might like it. It felt like I was sinking into the mattress, not good for a mattress advertised as "firm".