UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

SLEEP NUMBER CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota

(State or other jurisdiction of incorporation or organization)

0-25121	41-1597886
(Commission File No.)	(IRS Employer Identification No.)

1001 Third Avenue South, Minneapolis, MN 55404

(Address of principal executive offices) (Zip Code)

Samuel R. Hellfeld        (763) 551-6173

(Name and telephone number of the person

to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

þ Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2017.

Section 1 - Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

A Conflict Minerals Report, filed as Exhibit 1.01 hereto, is publicly available at www.sleepnumber.com

Item 1.02 Exhibit

The Conflict Minerals Report for the calendar year ended December 31, 2017 is filed as Exhibit 1.01 hereto.

Section 2 - Exhibits

Item 2.01 Exhibits

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

SIGNATURES

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 duly authorized undersigned.

SLEEP NUMBER CORPORATION

(Registrant)

Date: May 22, 2018

/s/ Samuel R. Hellfeld

By: Samuel R. Hellfeld

Vice President and Associate General Counsel

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