UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 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 1, 2025

SOMNIGROUP INTERNATIONAL INC.

(Exact name of registrant as specified in its charter)

Delaware	001-31922	33-1022198
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

1000 Tempur Way

Lexington, Kentucky 40511

(Address of principal executive offices) (Zip Code)

(800) 878-8889

(Registrant's telephone number, including area code)

N/A

(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:

☒

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 exchange on which registered
Common Stock, $0.01 par value	SGI	New York Stock Exchange

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 7.01. Regulation FD Disclosure.

On December 1, 2025, Somnigroup International Inc. (the "Company" or "Somnigroup") issued a press release announcing the Proposal described further in Item 8.01 herein. A copy of the press release is attached as Exhibit 99.1 to this current report on Form 8-K and is incorporated herein by reference.

The information disclosed pursuant to this Item 7.01 (including Exhibit 99.1) shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act") or otherwise subject to the liability of that section and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended (the "Securities Act"), or the Exchange Act, except as shall be expressly set forth by specific reference in any such filing.

Item 8.01. Other Items.

On December 1, 2025, the Company submitted a proposal to acquire all of the outstanding shares of Leggett & Platt, Incorporated ("Leggett & Platt") in exchange for shares of Somnigroup common stock having a market value of $12.00, based on a fixed exchange ratio to be agreed (the "Proposal").

Forward-Looking Statements

This communication contains statements that may be characterized as "forward-looking," within the meaning of the federal securities laws. Such statements might include information concerning one or more of the Company's plans, guidance, objectives, goals, strategies and other information that is not historical information. When used in this communication, the words "assumes," "estimates," "expects," "guidance," "anticipates," "might," "projects," "plans," "proposed," "targets," "intends," "believes," "will," "contemplates" and variations of such words or similar expressions are intended to identify forward-looking statements. These forward-looking statements include, without limitation, statements regarding Somnigroup's proposal to acquire Leggett & Platt (including the benefits, results, effects and timing of a transaction) and any statements regarding Somnigroup's (and Somnigroup's and Leggett & Platt's combined) expected future financial position, results of operations, cash flows, dividends, financing plans, business strategy, budgets, capital expenditures, competitive positions, growth opportunities and plans and objectives of management. Any forward-looking statements contained herein are based upon current expectations and beliefs and various assumptions. There can be no assurance that the Company (or the combined company) will realize these expectations, meet its guidance or that these beliefs will prove correct.

Numerous factors, many of which are beyond the Company's control, could cause actual results to differ materially from any that may be expressed herein as forward-looking statements. These potential risks include general economic, financial and industry conditions, particularly conditions relating to the financial performance and related credit issues present in the retail sector, as well as consumer confidence and the availability of consumer financing; the impact of the macroeconomic environment in both the U.S. and internationally on the Company; uncertainties arising from national and global events; industry competition; the effects of consolidation of retailers on revenues and costs; and consumer acceptance and changes in demand for the Company's products and the other factors discussed in the Company's Annual Report on Form 10-K for the year ended December 31, 2024. There may be other factors that may cause the Company's actual results to differ materially from the forward-looking statements. The Company undertakes no obligation to update any forward-looking statement to reflect events or circumstances after the date on which such statement is made.

Additional Information

This communication relates to a proposal which Somnigroup has made for a business combination transaction with Leggett & Platt. In furtherance of this proposal and subject to future developments, Somnigroup (and, if a negotiated transaction is agreed, Leggett & Platt) may file one or more registration statements, proxy statements, tender offer statements, prospectuses or other documents with the Securities and Exchange Commission (the "SEC"). This communication is not a substitute for any proxy statement, registration statement, tender offer statement, prospectus or other document Somnigroup and/or Leggett & Platt may file with the SEC in connection with the proposed transaction. INVESTORS AND SECURITY HOLDERS OF SOMNIGROUP AND LEGGETT & PLATT ARE URGED TO READ THE PROXY STATEMENT(S), REGISTRATION STATEMENT(S), TENDER OFFER STATEMENT(S), PROSPECTUS(ES) AND OTHER DOCUMENTS FILED WITH THE SEC CAREFULLY IN THEIR ENTIRETY IF AND WHEN THEY BECOME AVAILABLE AS THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Any definitive proxy statement(s) or prospectus(es) (if and when available) will be mailed to stockholders of Somnigroup and Leggett & Platt, as applicable. Investors and security holders will be able to obtain copies of these documents (if and when available) as well as other filings containing information about Somnigroup and Leggett & Platt, free of charge on the SEC's website at www.sec.gov. Those documents, when filed, as well as Somnigroup's other public filings with the SEC, may be obtained free of charge on Somnigroup's website at www.somnigroup.com.

Somnigroup and its directors, executive officers and certain other members of management and employees may be deemed to be participants in any solicitation with respect to the proposed transaction under the rules of the SEC. You can find information about Somnigroup's executive officers and directors in Somnigroup's definitive proxy statement filed with the SEC on March 31, 2025. Additional information regarding the interests of such potential participants will be included in one or more registration statements, proxy statements, tender offer statements, prospectuses or other documents filed with the SEC if and when they become available. You may obtain free copies of these documents using the sources indicated above.

This communication shall not constitute an offer to sell, buy or exchange or the solicitation of an offer to sell, buy or exchange any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number		Description
99.1		Press Release dated December 1, 2025, titled "Somnigroup Proposes to Acquire Leggett & Platt in All-Stock Transaction"
104		Cover page interactive data file (embedded within the Inline XBRL document).

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 undersigned hereunto duly authorized.

Date: December 1, 2025

	Somnigroup International Inc.

	By:	/s/ Bhaskar Rao
	Name:	Bhaskar Rao
	Title:	Executive Vice President & Chief Financial Officer

SOMNIGROUP INTERNATIONAL INC. 8-K