Mattress Firm Announces Third Fiscal Quarter Financial Results

— Net Sales Increased 51.1% with 6.6% Comparable-Store Sales Growth —

— Earnings per Diluted Share of $0.47 on an Adjusted Basis, $0.37 on a GAAP basis —

— Strengthens Market Leadership In North and South Carolina with Agreement to Acquire 28 Stores —

— Updates Financial Guidance for Fiscal 2012 —