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Form 8-K

sec.gov

8-K — Sleep Number Corp

Accession: 0000827187-26-000053

Filed: 2026-06-17

Period: 2026-06-16

CIK: 0000827187

SIC: 2510 (HOUSEHOLD FURNITURE)

Item: Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

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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):  June 16, 2026

SLEEP NUMBER CORPORATION

(Exact name of registrant as specified in its charter)

Minnesota

(State or other jurisdiction of incorporation)

000-25121 41-1597886

(Commission File Number) (IRS Employer Identification No.)

1001 Third Avenue South, Minneapolis, MN  55404

(Address of principal executive offices) (Zip Code)

(763) 551-7000

(Registrant’s telephone number, including area code)

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:

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

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

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

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

Securities registered pursuant to Section 12(b) of the Act:

Title of each class   Trading

Symbol(s)   Name of each exchange on which registered

Common Stock, par value $0.01 per share   SNBR   Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

ITEM 3.01 NOTICE OF DELISTING OR FAILURE TO SATISFY A CONTINUED LISTING RULE OR STANDARD; TRANSFER OF LISTING.

As previously disclosed, on June 12, 2026, Sleep Number Corporation (the “Company”) and its subsidiaries filed voluntary petitions for relief under chapter 11 of title 11 of the United States Code in the United States Bankruptcy Court for the Southern District of New York (the “Chapter 11 Cases”).

On June 16, 2026, the Company received a written notice from the Listing Qualifications Staff of The Nasdaq Stock Market LLC (“Nasdaq”) notifying the Company that, pursuant to Nasdaq Listing Rules 5101, 5110(b) and IM-5101-1, Nasdaq has determined to delist the Company’s common stock from Nasdaq. Nasdaq’s determination was based on the filing of the Chapter 11 Cases and associated public interest concerns raised thereby, concerns regarding the residual equity interest of common stockholders and concerns about the Company’s ability to sustain compliance with all requirements for continued listing on Nasdaq. Trading on Nasdaq of the Company's common stock will be suspended at the beginning of business on June 23, 2026. Nasdaq will file a Form 25-NSE with the Securities and Exchange Commission to remove the Company's common stock from Nasdaq. The Company does not intend to appeal Nasdaq's determination.

The Company does not expect the delisting to affect business operations or the Chapter 11 Cases. After suspension from trading, the Company’s common stock may be quoted on over-the-counter markets, although the Company does not provide any assurance regarding whether the common stock will trade on such markets, whether broker-dealers will provide quotes for the common stock or whether an efficient market for the common stock will develop.

SIGNATURE

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

SLEEP NUMBER CORPORATION

(Registrant)

Dated:  June 17, 2026   By:       /s/ Samuel R. Hellfeld

Name:   Samuel R. Hellfeld

Title:   Executive Vice President, Chief Legal and Risk Officer

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Jun. 16, 2026

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