<SEC-DOCUMENT>0001206264-17-000035.txt : 20170228
<SEC-HEADER>0001206264-17-000035.hdr.sgml : 20170228
<ACCEPTANCE-DATETIME>20170228170108
ACCESSION NUMBER:		0001206264-17-000035
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170224
FILED AS OF DATE:		20170228
DATE AS OF CHANGE:		20170228

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TEMPUR SEALY INTERNATIONAL, INC.
		CENTRAL INDEX KEY:			0001206264
		STANDARD INDUSTRIAL CLASSIFICATION:	HOUSEHOLD FURNITURE [2510]
		IRS NUMBER:				331022198
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1000 TEMPUR WAY
		CITY:			LEXINGTON
		STATE:			KY
		ZIP:			40511
		BUSINESS PHONE:		800-878-8889

	MAIL ADDRESS:	
		STREET 1:		1000 TEMPUR WAY
		CITY:			LEXINGTON
		STATE:			KY
		ZIP:			40511

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TEMPUR PEDIC INTERNATIONAL INC
		DATE OF NAME CHANGE:	20031202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TWI HOLDINGS INC
		DATE OF NAME CHANGE:	20021119

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hytinen Barry
		CENTRAL INDEX KEY:			0001613777

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31922
		FILM NUMBER:		17648810

	MAIL ADDRESS:	
		STREET 1:		1000 TEMPUR WAY
		CITY:			LEXINGTON
		STATE:			KY
		ZIP:			40502
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_148831924341664.xml
<DESCRIPTION>FORM 4
<TEXT>
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    <periodOfReport>2017-02-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001206264</issuerCik>
        <issuerName>TEMPUR SEALY INTERNATIONAL, INC.</issuerName>
        <issuerTradingSymbol>TPX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001613777</rptOwnerCik>
            <rptOwnerName>Hytinen Barry</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TEMPUR SEALY INTERNATIONAL, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1000 TEMPUR WAY</rptOwnerStreet2>
            <rptOwnerCity>LEXINGTON</rptOwnerCity>
            <rptOwnerState>KY</rptOwnerState>
            <rptOwnerZipCode>40511</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>CFO, EVP</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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    <derivativeTable>
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            <expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
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                </underlyingSecurityShares>
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                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
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                    <value>4566.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>13696</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted stock units subject to a performance threshold were granted to the Reporting Person on February 11, 2016 (the &quot;Grant Date&quot;). Upon achievement of the performance threshold, the first tranche of the restricted stock units vested and were released. On February 24, 2017, the Company's Compensation Committee determined that the performance threshold had been satisfied, and the award became subject only to time vesting restrictions. Pursuant to the award agreement, the restricted stock units vest in four installments, with 4,566 units vesting on the first two anniversaries of the Grant Date and 4,565 units vesting on each of the third and fourth anniversaries of the Grant Date. Each restricted stock unit represents a contingent right to receive one share of TPX Common Stock.</footnote>
        <footnote id="F2">Represents the number of shares withheld in accordance with the award agreement and the Company's 2013 Equity Incentive Plan, as amended (the &quot;Plan&quot;) to cover the withholding taxes arising upon the vesting of these restricted stock units. The Plan requires the tax withholding to be calculated at the closing price of the Common Stock on the date the award vested, which was $45.95 on Friday, February 24, 2017.</footnote>
        <footnote id="F3">Represents the number of shares the Reporting Person earned on February 24, 2017 under a PRSU award granted on February 28, 2014, covering a three-year performance period ending December 31, 2016.</footnote>
        <footnote id="F4">Represents the number of shares withheld in accordance with the award agreement and the Company's 2013 Equity Incentive Plan, as amended (the &quot;Plan&quot;) to cover the withholding taxes arising upon the vesting of these PRSUs.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Barry Hytinen</signatureName>
        <signatureDate>2017-02-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
