This truly was a disappointment. I wanted a Latex mattress and thought the combination of Vera Wang and Serta would provide me with a top notch latex mattress. What a shocker. After a short period the mattress sagged under me and I am not a heavy person. Rotation of the mattress just compounded the matter. I never contacted Sleep Train about it but will call Serta No Serta mattresses for me.. I still want Latex.