<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2013-03-12</periodOfReport>

    <dateOfOriginalSubmission>2013-03-22</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000748015</issuerCik>
        <issuerName>SEALY CORP</issuerName>
        <issuerTradingSymbol>ZZ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001076809</rptOwnerCik>
            <rptOwnerName>GLAZER CAPITAL, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>623 FIFTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2502</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001133985</rptOwnerCik>
            <rptOwnerName>GLAZER PAUL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>623 FIFTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2502</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, $0.01 par value per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13756899</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote.</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Glazer Capital, LLC is deemed to beneficially and indirectly own 13,756,899 shares of the Issuer's Common Stock because Glazer Capital, LLC exercises investment control over 13,756,899 shares of the Issuer's Common Stock in its capacity as (i) the discretionary investment manager of certain private investment funds that own shares of the Issuer's Common Stock and (ii) discretionary manager to separate accounts for two unrelated entities that also own shares of the Issuer's Common Stock.  Paul J. Glazer is deemed to beneficially and indirectly own 13,756,899 shares of the Issuer's Common Stock in his capacity as the managing member of Glazer Capital, LLC.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Paul J. Glazer</signatureName>
        <signatureDate>2013-03-27</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Paul J. Glazer</signatureName>
        <signatureDate>2013-03-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
