UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): December 10, 2014

MATTRESS FIRM HOLDING CORP.
(Exact Name of Registrant as Specified in Charter)

Registrant's telephone number, including area code: (713) 923-1090

Not applicable
(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01    Regulation FD Disclosure.

        On December 10, 2014, Mattress Firm Holding Corp., a Delaware corporation (the "Company"), issued a press release announcing the offering of 2,185,130 shares of common stock by certain selling stockholders pursuant to the Registration Statement on Form S-3 filed with the Securities and Exchange Commission on July 14, 2014. A copy of the press release is attached to this Current Report on Form 8-K as Exhibit 99.1. The foregoing description is qualified by reference in its entirety to such exhibit.

        This report on Form 8-K and the press release furnished as Exhibit 99.1 is neither an offer to sell nor a solicitation of an offer to buy any of the securities described herein, and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such jurisdiction.

Item 9.01    Financial Statements and Exhibits.

(d)

Exhibits

SIGNATURE

        Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Index to Exhibits

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Item 7.01 Regulation FD Disclosure.
Item 9.01 Financial Statements and Exhibits.