Mattress 1st is a large mattress gallery, located inside 5th & Main Furniture by Freed’s, in downtown Rapid City. We strive to provide maximum comfort by providing mattresses, adjustable bases, and bedding accessories with innovative technology, great value, and premium quality. Our Bedding Experts are here to help you find the proper sleep system that provides a solution to the sleep problems ailing you. We proudly offer Serta, Aireloom, and Mattress 1st mattresses and adjustable bases. Visit us at Mattress 1st to start your journey to a better night’s rest.