SCHEDULE 13D/A

Sleep Number Corp

Common Stock, par value $0.01 per share · CUSIP: 83125X103

Event date: 2025-03-13

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• STADIUM CAPITAL MANAGEMENT LLCReported CIK 0001105087

  Shares: 2,616,459.00 · Class: 11.7%

• Stadium Capital Management GP, L.P.Reported CIK 0001580925

  Shares: 2,616,459.00 · Class: 11.7%

• Stadium Special Opportunity I, L.P.Reported CIK 0001987945

  Shares: 401,459.00 · Class: 1.8%

• STADIUM CAPITAL PARTNERS L PReported CIK 0001076204

  Shares: 2,215,000.00 · Class: 9.9%

• SEAVER ALEXANDER MReported CIK 0001473106

  Shares: 2,616,459.00 · Class: 11.7%

• HOPF PATRICK AReported CIK 0001271538

  Shares: 76,500.00 · Class: 0.3%

• Fazio Gary TReported CIK 0002060606

  Shares: 71,125.00 · Class: 0.3%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.