Business and Summary of Significant Accounting Policies	9 Months Ended
Business and Summary of Significant Accounting Policies	Sep. 28, 2024
Accounting Policies [Abstract]
Business and Summary of Significant Accounting Policies	Business and Summary of Significant Accounting Policies Business & Basis of Presentation The Company prepared the condensed consolidated financial statements as of and for the three and nine months ended September 28, 2024 of Sleep Number Corporation and its 100%-owned subsidiaries (Sleep Number or the Company), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) and they reflect, in the opinion of management, all normal recurring adjustments, including the elimination of all significant intra-entity balances and transactions, necessary to present fairly its financial position as of September 28, 2024 and December 30, 2023, and the consolidated results of operations and cash flows for the periods presented. The historical and quarterly consolidated results of operations may not be indicative of the results that may be achieved for the full year or any future period. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (GAAP) have been condensed or omitted pursuant to such rules and regulations. These condensed consolidated financial statements should be read in conjunction with the most recent audited consolidated financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2023 and other recent filings with the SEC. The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires the Company to make estimates and assumptions. These estimates and assumptions affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of sales, expenses and income taxes during the reporting period. Predicting future events is inherently an imprecise activity and, as such, requires the use of judgment. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in these estimates will be reflected in the consolidated financial statements in future periods and could be material. The Company’s critical accounting policies consist of stock-based compensation, warranty liabilities and revenue recognition. Income Taxes Income tax benefit totaled $0.9 million for the nine months ended September 28, 2024, compared with income tax expense of $3 million last year. The change in income tax expense was primarily due to the change in (loss) income before income taxes levels and the impact of discrete tax expenses. Discrete tax expense, primarily stock-based compensation tax shortfalls, was $2.6 million for the nine months ended September 28, 2024, compared to $1.1 million for the same period last year. Recent Issued Accounting Pronouncements Not Yet Adopted Segment Reporting (Topic 280) In November 2023, the Financial Accounting Standards Board issued guidance within Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. This ASU requires that a public entity that has a single reportable segment provide all the disclosures required by the amendments in this ASU and all existing disclosures in Topic 280. The Company has determined that its current business and operations consist of a single business segment and a single reporting unit. The amendments in this ASU are intended to improve segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The key amendments included in this ASU: •Require disclosure on an annual and interim basis, of significant segment expenses that are regularly provided to the chief operating decision maker (CODM) and are included within each reported measure of segment profit and loss. •Require disclosure on an annual and interim basis, an amount for other segment items (defined in this ASU) and a description of its composition. •Clarify that if the CODM uses more than one measure of the segment’s profit or loss in assessing performance, one or more of those additional measures may be reported. •Require disclosure of the title and position of the CODM and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing performance. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. This guidance is required to be adopted by the Company beginning with the annual period of 2024. The amendments should be applied retrospectively to all prior periods presented in the consolidated financial statements. The Company is currently evaluating the impact of this ASU on the Company’s consolidated financial statements. Currently, management does not believe that any other recently issued, but not yet effective accounting pronouncements, if currently adopted, would have a material impact on the Company’s unaudited condensed consolidated financial statements.