X0508 4 2024-12-10 0000827187 Sleep Number Corp SNBR 0001232758 HOWARD JULIE 1001 THIRD AVENUE SOUTH MINNEAPOLIS MN 55404 1 0 Common Stock 23322 D Phantom Stock 2024-12-10 4 A 0 1204.9721 19.71 A Common Stock 1204.9721 12233.0442 D Includes 5,457 restricted stock units that will vest over time. Each share of Phantom Stock is the economic equivalent of one share of Common Stock. The shares of Phantom Stock become payable in Common Stock, at the election of the reporting person. These shares in lieu of board fees are awarded based on an irrevocable deferral election for calendar year 2024 which was made before January 1, 2024. /s/ Julie M. Howard, by Rebecca Long, attorney-in-fact 2024-12-12