I purchased this mattress because my current mattress offered no support and I would always roll toward the middle.   Based on the great reviews I purchased this one.  BIG mistake.  There is zero support and I've had only one week and my back is killing me.  And to have this returned it would cost me the same amount of the purchase so now I'm stuck with this purchase.  I guess common sense would've told me that shipping a mattress back would not be an easy feat.  Be warned: if you like or need support for your back do not purchase this one!  I've been happy with all my other purchases with Wayfair so I'm pretty disappointed with this one.