Welcome to Mattress Firm South Texas. Mattress Firm South Texas is a pioneer franchise of Mattress Firm Inc. that operates 15 locations across three South Texas markets Corpus Christi, Rio Grande Valley and Laredo. The Perez Family has helped South Texas sleep happy since 1997. With superior products from Sealy, Stearns & Foster and Tempur-Pedic., Mattress Firm South Texas has the latest in sleep technology to help you Sleep Happy. The Perez Family is passionate about quality, value and service. Visit one of our locations to experience the difference.