-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 nCGHR52vAXm0tYv/1LfZ1g==

<SEC-DOCUMENT>0001181431-06-060102.txt : 20061027
<SEC-HEADER>0001181431-06-060102.hdr.sgml : 20061027
<ACCEPTANCE-DATETIME>20061027184422
ACCESSION NUMBER:		0001181431-06-060102
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20061026
FILED AS OF DATE:		20061027
DATE AS OF CHANGE:		20061027

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sunstone Hotel Investors, Inc.
		CENTRAL INDEX KEY:			0001295810
		STANDARD INDUSTRIAL CLASSIFICATION:	HOTELS & MOTELS [7011]
		IRS NUMBER:				201296886
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		903 CALLE AMANECER, SUITE 100
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673
		BUSINESS PHONE:		949-369-4000

	MAIL ADDRESS:	
		STREET 1:		903 CALLE AMANECER, SUITE 100
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ALTER ROBERT A
		CENTRAL INDEX KEY:			0001083436

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32319
		FILM NUMBER:		061170068

	BUSINESS ADDRESS:	
		STREET 1:		SUNSTONE HOTEL INVESTORS INC
		STREET 2:		903 CALLE AMANECER
		CITY:			SAN CLEMENTE
		STATE:			CA
		ZIP:			92673-6212
		BUSINESS PHONE:		9493694309

	MAIL ADDRESS:	
		STREET 1:		SUNSTONE HOTEL INVESTORS INC
		STREET 2:		903 CALLE AMANECER
		CITY:			SAN CLAMENTINE
		STATE:			CA
		ZIP:			92673-6212
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd134063.xml
<DESCRIPTION>OCTOBER 2006 VESTING
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-10-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001295810</issuerCik>
        <issuerName>Sunstone Hotel Investors, Inc.</issuerName>
        <issuerTradingSymbol>SHO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001083436</rptOwnerCik>
            <rptOwnerName>ALTER ROBERT A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>903 CALLE AMANECER</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>SAN CLEMENTE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92011</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-10-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>31578</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>315111</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-10-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11289</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.94</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>303822</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Unit</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-10-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>31578</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>31578</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>126317</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On October 26, 2004, Mr. Alter was granted an aggregate amount of 210,526 restricted stock units, subject to the satisfaction of vesting requirements over a five-year period. Upon vesting, Sunstone Hotel Investors, Inc. will deliver one share of Common Stock for each vested restricted stock unit. Mr. Alter has only the rights of an unsecured creditor in the restricted stock units and no rights as a stockholder if Sunstone Hotel Investors, Inc. until the restricted stock units vest.</footnote>
        <footnote id="F2">On October 26, 2006, 31,578 restricted stock units vested and 11,289 shares of Common Stock were withheld to satisfy tax withholding obligations. The closing price on October 26, 2006 of Sunstone Hotel Investors, Inc. on the New York Stock Exchange was $28.94.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Robert A. Alter</signatureName>
        <signatureDate>2006-10-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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