XML 52 R39.htm IDEA: XBRL DOCUMENT
v3.25.3

Credit Agreement - Narrative (Details) - Line of Credit $ in Thousands | Nov. 04, 2025 USD ($) | Sep. 27, 2025 USD ($)
--- | --- | ---
Line of Credit Facility [Line Items] |  |
Current borrowing capacity |  | $ 670,000
Revolving Credit Facility | Debt Covenant Period One |  |
Line of Credit Facility [Line Items] |  |
Net leverage ratio, maximum threshold |  | 5.25
Minimum interest coverage ratio |  | 1.50
Revolving Credit Facility | Subsequent Event | Debt Covenant Period One |  |
Line of Credit Facility [Line Items] |  |
Minimum liquidity | $ 30,000 |
Revolving Credit Facility | Subsequent Event | Debt Covenant Period Two |  |
Line of Credit Facility [Line Items] |  |
Net leverage ratio, maximum threshold | 4.50 |
Minimum liquidity | $ 40,000 |
Minimum interest coverage ratio | 2.10 |
Revolving Credit Facility | Subsequent Event | Debt Covenant Period Three |  |
Line of Credit Facility [Line Items] |  |
Net leverage ratio, maximum threshold | 4.75 |
Minimum interest coverage ratio | 1.80 |
Revolving Credit Facility | Subsequent Event | Debt Covenant Period Four |  |
Line of Credit Facility [Line Items] |  |
Net leverage ratio, maximum threshold | 4.80 |
Minimum interest coverage ratio | 2.10 |
Revolving Credit Facility | Subsequent Event | Debt Covenant Period Five |  |
Line of Credit Facility [Line Items] |  |
Net leverage ratio, maximum threshold | 4.00 |
Minimum interest coverage ratio | 2.20 |
Revolving Credit Facility | Credit Agreement |  |
Line of Credit Facility [Line Items] |  |
Total commitment amount |  | $ 485,000
Revolving Credit Facility | Credit Agreement | Subsequent Event |  |
Line of Credit Facility [Line Items] |  |
Increase amortization of outstanding term loans | $ 1,250 |
Annual principal payment | 3,750 |
Revolving Credit Facility | Credit Agreement | Subsequent Event | Debt Covenant Period One |  |
Line of Credit Facility [Line Items] |  |
Total commitment amount | $ 475,000 |
Debt instrument, basis spread on variable rate | 4.00% |
Commitment fee percentage | 0.50% |
Revolving Credit Facility | Credit Agreement | Subsequent Event | Debt Covenant Period Two |  |
Line of Credit Facility [Line Items] |  |
Total commitment amount | $ 465,000 |
Debt instrument, basis spread on variable rate | 4.25% |
Commitment fee percentage | 0.75% |

X
- Definition Debt Instrument, Covenant, Increase Amortization of Outstanding Loans + References No definition available. + Details
Name: | snbr_DebtInstrumentCovenantIncreaseAmortizationOfOutstandingLoans
Namespace Prefix: | snbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Threshold + References No definition available. + Details
Name: | snbr_DebtInstrumentCovenantInterestCoverageRatioMinimumThreshold
Namespace Prefix: | snbr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Debt Instrument, Covenant, Minimum Liquidity + References No definition available. + Details
Name: | snbr_DebtInstrumentCovenantMinimumLiquidity
Namespace Prefix: | snbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Instrument, Covenant, Net Leverage Ratio, Maximum Threshold + References No definition available. + Details
Name: | snbr_DebtInstrumentCovenantNetLeverageRatioMaximumThreshold
Namespace Prefix: | snbr_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of annual principal payment for debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_DebtInstrumentAnnualPrincipalPayment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481544/470-10-50-6 + Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snbr_DebtCovenantPeriodAxis=snbr_DebtCovenantPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snbr_DebtCovenantPeriodAxis=snbr_DebtCovenantPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snbr_DebtCovenantPeriodAxis=snbr_DebtCovenantPeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snbr_DebtCovenantPeriodAxis=snbr_DebtCovenantPeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | snbr_DebtCovenantPeriodAxis=snbr_DebtCovenantPeriodFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=snbr_CreditAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |