The Serta Memery Foam Mattress Topper is one of the best mattress i have ever had,not only was it cheaper than a new mattress it has been wonderful on my backpain,and my side pain and my neck pain.A  short while after i started useing it i notised a big differnce. I was waking up with less stiffeness in my joints and muscles.And it was alot less painfull to get out of bed.With my old mattress i could hardley walk when i got out of bed,the pain was so bad ,it went down my leg and my back would pop and crack,it would acually take a couple hours to be able to move around normally.I have chronic...