AdvertisementStores Full Of Furniture, 'Mattress Mack' Opens His Doors To Flood VictimsAugust 29, 2017Heidi GlennDaniella CheslowfacebookEmailJim McIngvale, also known as Mattress Mack, opened his two furniture stores in Houston to serve as temporary shelters. He invited people to come via a Facebook Live video and gave out his personal cell number. (Screenshot by NPR)