... and it's perfect. and now through sunday only, every sleep number bed is on sale. queen mattresses now start at just $599. and save an incredible 40% on our silver limited edition bed - but only while supplies last. once you experience it, there's no going back. wow. don't miss the biggest sale of the year on the bed that can change your life. the sleep number bed. final days! sale ends sunday. only at one place: one of our 400 sleep number stores.