Don't buy this mattress

I would suggest instead buying a bag of concrete to pour on your bedroom floor; the concrete will be significantly softer than this "Plush" mattress. I have never really liked Sears, but will NEVER shop there again after this purchase and subsequent headaches (both literally and figuratively). I was told I cannot return or exchange this mattress so it will now be thrown in a dumpster. I can't even donate the mattress, because it is so uncomfortable would feel guilty giving it to someone. This is my second Serta mattress (exchanged the first one after 30 days and a horrible backache) and it will be my last. Turns out I only THOUGHT the first one was bad until I slept on the second one, at least I only wasted 1000.00 on this one.