SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* MATTRESS HOLDINGS, LLC (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 11/17/2011	3. Issuer Name and Ticker or Trading Symbol MATTRESS FIRM HOLDING CORP. [ MFRM ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	22,399,952(1)	D(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* MATTRESS HOLDINGS, LLC (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* JW CHILDS EQUITY PARTNERS III LP (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* J.W. Childs Advisors III, L.P. (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* JWC FUND III CO INVEST LLC (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* J.W. Childs Associates, L.P. (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* J.W. Childs Mattress Holdings, LLC (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* J.W. Childs Associates, Inc. (Last) (First) (Middle) 111 HUNTINGTON AVENUE, SUITE 2900 (Street) BOSTON MA 02199 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Mattress Holdings, LLC holds a total of 22,399,952 shares of common stock of the issuer. Through J.W. Childs Mattress Holdings, LLC ("JWCMH"), (i) J.W. Childs Equity Partners III, L.P. ("JWCEP"), whose general partner is J.W. Childs Advisors III, L.P., indirectly holds 9,633 Class A Units and 12,753,081 Class C Units of Mattress Holdings, LLC; and (ii) JWC Fund III Co-Invest, LLC ("JWCF"), whose managing member is J.W. Childs Associates, L.P, indirectly holds 799 Class A and 657,886 Class C Units of Mattress Holdings, LLC. J.W. Childs Associates, Inc. controls each of JWCEP and JWCF and also manages JWCMH. Each of the foregoing reporting persons disclaims beneficial ownership of such common stock of the issuer except to the extent of its pecuniary interest therein.

	/s/ James R. Black, by power of attorney	11/17/2011
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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