Office Furniture Sioux City IA. Providing superior customer service is a top priority for our company and we take great pride that the majority of our staff has been with our company. The mattress experts work closely with manufacturers to bring a variety of unique choices to consumers at affordable prices. you will find amazing savings on all items. We pride ourselves on delivering top notch customer service and a friendly, knowledgeable sales staff, along with offering quality, long lasting furniture at a price range to fit all budgets.