Mattress Firm opened a location Aug. 18 at 24600 I-10, Ste. 1300, Katy. The national franchise sells a variety of sleep-related products, including mattresses, mattress protectors, mattress toppers, adjustable beds, bed frames and headboards. Other furniture and accessories, such as sofas, arm chairs and massage chairs, are also available. 281-665-1630. www.mattressfirm.com