# EDGAR Filing Document

**Accession Number:** 0000827187
**File Stem:** 0000921895-26-001522
**Filing Date:** 2026-6
**Character Count:** 10038
**Document Hash:** d4b155356665ee23bffc13f506160931
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000921895-26-001522.hdr.sgml**: 20260601

**ACCESSION NUMBER**: 0000921895-26-001522

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260528

**FILED AS OF DATE**: 20260601

**DATE AS OF CHANGE**: 20260601

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** STADIUM CAPITAL PARTNERS L P
- **CENTRAL INDEX KEY:** 0001076204

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-25121
- **FILM NUMBER:** 261053167

**BUSINESS ADDRESS:**
- **STREET 1:** 199 ELM STREET
- **CITY:** NEW CANAAN
- **STATE:** CT
- **ZIP:** 06840
- **BUSINESS PHONE:** (203) 972-8235

**MAIL ADDRESS:**
- **STREET 1:** 199 ELM STREET
- **CITY:** NEW CANAAN
- **STATE:** CT
- **ZIP:** 06840
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** STADIUM CAPITAL MANAGEMENT LLC
- **CENTRAL INDEX KEY:** 0001105087

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-25121
- **FILM NUMBER:** 261053168

**BUSINESS ADDRESS:**
- **STREET 1:** 199 ELM STREET
- **CITY:** NEW CANAAN
- **STATE:** CT
- **ZIP:** 06840-5321
- **BUSINESS PHONE:** (203) 972-8235

**MAIL ADDRESS:**
- **STREET 1:** 199 ELM STREET
- **CITY:** NEW CANAAN
- **STATE:** CT
- **ZIP:** 06840-5321
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Sleep Number Corp
- **CENTRAL INDEX KEY:** 0000827187
- **STANDARD INDUSTRIAL CLASSIFICATION:** HOUSEHOLD FURNITURE [2510]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 411597886
- **STATE OF INCORPORATION:** MN
- **FISCAL YEAR END:** 0103

**BUSINESS ADDRESS:**
- **STREET 1:** 1001 THIRD AVENUE SOUTH
- **CITY:** MINNEAPOLIS
- **STATE:** MN
- **ZIP:** 55404
- **BUSINESS PHONE:** 7635517000

**MAIL ADDRESS:**
- **STREET 1:** 1001 THIRD AVENUE SOUTH
- **CITY:** MINNEAPOLIS
- **STATE:** MN
- **ZIP:** 55404

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SELECT COMFORT CORP
- **DATE OF NAME CHANGE:** 19980821

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[x] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>STADIUM CAPITAL MANAGEMENT LLC<br><sub>(Last) (First) (Middle)</sub><br>199 ELM STREET<br><sub>(Street)</sub><br>NEW CANAAN, CT 06840<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [X] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Sleep Number Corp [ SNBR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>STADIUM CAPITAL PARTNERS L P<br><sub>(Last) (First) (Middle)</sub><br>199 ELM STREET<br><sub>(Street)</sub><br>NEW CANAAN, CT 06840<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-28 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[ ] Officer (give title below) [X] Other (specify below)<br>_See Explanation of Responses_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Sleep Number Corp [ SNBR ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock, par value $0.01 per share<sup>(1)</sup> | 2026-05-28 |  | S |  | 330732 | D | 1.7791<sup>(2)</sup> | 1884268 | I | By: Stadium Capital Partners, L.P.<sup>(3)</sup> |
| Common Stock, par value $0.01 per share<sup>(1)</sup> | 2026-05-28 |  | S |  | 59944 | D | 1.7791<sup>(2)</sup> | 341515 | I | By: Stadium Special Opportunity I, L.P.<sup>(4)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) This Form 4 is filed jointly by Stadium Capital Management, LLC ("SCM"), Stadium Capital Management GP, L.P. ("SCMGP"), Stadium Special Opportunity I, L.P. ("SSO"), Stadium Capital Partners, L.P. ("SCP") and Alexander M. Seaver (collectively, the "Reporting Persons"). Each of the Reporting Persons may be deemed to be a member of a Section 13(d) group that previously collectively beneficially owned more than 10% of Sleep Number Corporation's (the "Issuer") outstanding shares of Common Stock. Each of the Reporting Persons disclaims beneficial ownership of the securities reported herein except to the extent of his or its pecuniary interest therein.

(2) The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.6800 to $1.8750 per share. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

(3) Securities owned directly by SCP. As the general partner of SCP, SCMGP may be deemed to beneficially own the securities owned directly by SCP. SCM, as the investment advisor of SCP and general partner of SCMGP, may be deemed to beneficially own the securities owned directly by SCP. Mr. Seaver, as the manager of SCM, may be deemed to beneficially own the securities owned directly by SCP.

(4) Securities owned directly by SSO. As the general partner of SSO, SCMGP may be deemed to beneficially own the securities owned directly by SSO. SCM, as the investment advisor of SSO and general partner of SCMGP, may be deemed to beneficially own the securities owned directly by SSO. Mr. Seaver, as the manager of SCM, may be deemed to beneficially own the securities owned directly by SSO.

**Signature:** Stadium Capital Management, LLC; By /s/ Alexander M. Seaver, Manager  
**Date:** 2026-06-01

**Signature:** Stadium Capital Management GP, L.P.; By Stadium Capital Management, LLC; By /s/ Alexander M. Seaver, Manager  
**Date:** 2026-06-01

**Signature:** Stadium Special Opportunity I, L.P.; By Stadium Capital Management GP, L.P.; By Stadium Capital Management, LLC; By /s/ Alexander M. Seaver, Manager  
**Date:** 2026-06-01

**Signature:** Stadium Capital Partners, L.P.; By Stadium Capital Management GP, L.P.; By Stadium Capital Management, LLC; By /s/ Alexander M. Seaver, Manager  
**Date:** 2026-06-01

**Signature:** /s/ Alexander M. Seaver  
**Date:** 2026-06-01

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**