<SEC-DOCUMENT>0001127602-20-028614.txt : 20201110
<SEC-HEADER>0001127602-20-028614.hdr.sgml : 20201110
<ACCEPTANCE-DATETIME>20201110160719
ACCESSION NUMBER:		0001127602-20-028614
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20201109
FILED AS OF DATE:		20201110
DATE AS OF CHANGE:		20201110

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Callen David R
		CENTRAL INDEX KEY:			0001418784

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25121
		FILM NUMBER:		201301155

	MAIL ADDRESS:	
		STREET 1:		9800 59TH AVENUE NORTH
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55442

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sleep Number Corp
		CENTRAL INDEX KEY:			0000827187
		STANDARD INDUSTRIAL CLASSIFICATION:	HOUSEHOLD FURNITURE [2510]
		IRS NUMBER:				411597886
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			0102

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-11-09</periodOfReport>

    <issuer>
        <issuerCik>0000827187</issuerCik>
        <issuerName>Sleep Number Corp</issuerName>
        <issuerTradingSymbol>SNBR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001418784</rptOwnerCik>
            <rptOwnerName>Callen David R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1001 THIRD AVENUE SOUTH</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55404</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SVP &amp; CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-11-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>4178</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>71.5922</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>55157</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price.  These shares were sold in multiple transactions at prices between $71.25 and $72.00, inclusive.  The reporting person will provide to the SEC Staff, Sleep Number or any security holder of Sleep Number, upon request, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F2">Includes 3,830 restricted stock units and 33,200 restricted stock units which the reporting person has deferred.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ David R. Callen, by Rebecca Long, attorney-in-fact</signatureName>
        <signatureDate>2020-11-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
