I Need a New Mattress

I've been having so much pain in my lower back that I missed work yesterday. My mattress has gotten old and worn out and doesn't support my back like it should. I need a new firm and comfortable mattress that supports my back, knees, and other parts of my body so that I don't wake up in pain every morning. I'm hoping that I can win the giveaway that Bizzie Mommy is holding on her website at http://www.bizziemommy.com/new-year-new-mattress-giveaway.html for a new Sealy Posturepedic mattress.