HOUSTON--(BUSINESS WIRE)--Mattress Firm Holding Corp. (the "Company") (NASDAQ:MFRM) today announced the pricing of the sale of 1,505,000 shares of its common stock by certain selling stockholders, certain of whom are management or otherwise affiliated with directors of the Company, including investment funds affiliated with J.W. Childs Associates, L.P., to UBS Investment Bank, as the sole underwriter in the registered public offering of those shares. Total estimated gross proceeds of the offeri