UNITED STATES
                             SECURITIES AND EXCHANGE COMMISSION
                                   WASHINGTON, D.C. 20549



                                          FORM 10-K


  (Mark one)

  /X/ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934
      For the fiscal year ended December 31, 2005

      OR



  / / TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934


      Commission File Number:  333-120916-21


        Structured Asset Mortgage Investments II Inc.
        Mortgage Pass-Through Certificates
        Series 2005-AR4

     (Exact name of registrant as specified in its charter)


  New York                                          54-2179699
  (State or other jurisdiction of                   54-2179701
  incorporation or organization)                    54-2179700
                                                    (I.R.S. Employer
                                                    Identification No.)


   c/o Wells Fargo Bank, N.A.
   9062 Old Annapolis Road
   Columbia, MD                                21045
  (Address of principal executive offices)    (Zip Code)


  Registrant's telephone number, including area code: (410) 884-2000


  Securities registered pursuant to Section 12(b) of the Act:

        NONE.


  Securities registered pursuant to Section 12(g) of the Act:

        NONE.


  Indicate by check mark if the registrant is a well-known seasoned issuer,
  as defined in Rule 405 of the Securities Act.

        Yes  ___     No  X


  Indicate by check mark if the registrant is not required to file reports
  pursuant to Section 13 or Section 15(d) of the Act.

        Yes  ___     No  X


  Indicate by check mark whether the registrant (1) has filed all reports
  required to be filed by Section 13 or 15(d) of the Securities Exchange
  Act of 1934 during the preceding 12 months (or for such shorter period
  that the registrant was required to file such reports), and (2) has been
  subject to such filing requirements for the past 90 days.

        Yes  X       No  ___


  Indicate by check mark if disclosure of delinquent filers pursuant to
  Item 405 of Regulation S-K ( 229.405 of this chapter) is not contained
  herein, and will not be contained, to the best of registrant's knowledge,
  in definitive proxy or information statements incorporated by reference
  in Part III of this Form 10-K or any amendment to this Form 10-K.

        Not applicable.


  Indicate by check mark whether the registrant is a large accelerated filer,
  an accelerated filer, or a non-accelerated filer. See Definition of
  "accelerated filer and large accelerated filer" in Rule 12b-2 of the
  Exchange Act. (Check One):


  Large Accelerated Filer ___  Accelerated Filer ___  Non-Accelerated Filer X


  Indicate by check mark whether the registrant is a shell company (as
  defined in Rule 12b-2 of the Act).

        Yes  ___     No  X


  State the aggregate market value of the voting and non-voting common
  equity held by non-affiliates computed by reference to the price at which
  the common equity was last sold, or the average bid and asked price of
  such common equity, as of the last business day of the registrant's most
  recently completed second fiscal quarter.

        Not applicable.


     Documents Incorporated by Reference

  List hereunder the following documents if incorporated by reference and
  the Part of the Form 10-K (e.g. Part I, Part II, etc.) into which the
  document is incorporated: (1)Any annual report to security holders; (2)
  Any proxy or information statement; and (3)Any prospectus filed pursuant
  to Rule 424(b) or (c) under the Securities Act of 1933. The listed
  documents should be clearly described for identification purposes (e.g.
  annual report to security holders for fiscal year ended December 24, 1980).

        Not applicable.


                                   PART I
  Item 1.  Business.

            Not applicable.


  Item 1A.  Risk Factors.

            Not applicable.


  Item 1B.  Unresolved Staff Comments.

            Not applicable.


  Item 2.  Properties.

            Not applicable.


  Item 3.  Legal Proceedings.

            The registrant knows of no material pending legal proceedings
            involving the trust created under the Pooling and Servicing
            Agreement (the Trust), the Trustee, the Servicer or the
            registrant with respect to the Trust other than routine
            litigation incidental to the duties of the respective parties.


  Item 4.  Submission of Matters to a Vote of Security Holders.

            None.

                                PART II

  Item 5.  Market for Registrant's Common Equity, Related Stockholder
           Matters and Issuer Purchases of Equity Securities.

            No established public trading market for the Certificates exists.

            Records provided to the Trust by the DTC and the Trustee
            indicate that as of December 31, 2005, the total number of holders
            of record for the Series of Certificates is 32.


  Item 6.  Selected Financial Data.

            Not applicable.

  Item 7.  Management's Discussion and Analysis of Financial Condition and
           Results of Operation.


            Not applicable.


  Item 7A. Quantitative and Qualitative Disclosures about Market Risk.

            Not applicable.


  Item 8.  Financial Statements and Supplementary Data.

            Not applicable.


  Item 9.  Changes in and Disagreements with Accountants on Accounting and
           Financial Disclosure.

            None.


  Item 9A. Controls and Procedures.
            Not applicable.


  Item 9B. Other Information.

            None.


                                PART III

  Item 10. Directors and Executive Officers of the Registrant.

            Not applicable.


  Item 11. Executive Compensation.

            Not applicable.

  Item 12. Security Ownership of Certain Beneficial Owners and Management
           and Related Stockholder Matters.

            Not applicable.

  Item 13. Certain Relationships and Related Transactions.

            Not applicable.


  Item 14. Principal Accounting Fees and Services.

            Not applicable.


                                PART IV

  Item 15. Exhibits, Financial Statement Schedules.

   (a) Exhibits

     (31.1) Rule 13a-14(a)/15d-14(a) Certification

     (99.1) Annual Independent Accountants' Servicing Reports concerning
            servicing activities.

      <TABLE>

      
         <c>
      a) Countrywide Home Loans Inc., as Servicer <F1>

      </TABLE>

     (99.2) Report of Management as to Compliance with Minimum Servicing
            Standards.

      <TABLE>

      
        <c>
      a) Countrywide Home Loans Inc., as Servicer <F1>

      </TABLE>

     (99.3) Annual Statements of Compliance under the Pooling and Servicing
            Agreements.

      <TABLE>

      
         <c>
      a) Countrywide Home Loans Inc., as Servicer <F1>

      </TABLE>


     (99.4) Aggregate Statement of Principal and Interest Distributions to
            Certificate Holders.


   (b) Not applicable.

   (c) Omitted.


  <F1> Filed herewith.


                                SIGNATURES

  Pursuant to the requirements of Section 13 or 15(d) of the Securities
  Exchange Act of 1934, the registrant has duly caused this report to be
  signed on its behalf by the undersigned, thereunto duly authorized:



    Structured Asset Mortgage Investments II Inc.
    Mortgage Pass-Through Certificates
    Series 2005-AR4
    (Registrant)


  Signed: Wells Fargo Bank, N.A. as Master Servicer

  By:     Dawn Hammond, Vice President

  By: /s/ Dawn Hammond, Vice President

  Dated:  March 22, 2006


  Exhibit Index

  Exhibit No.

  Ex-31.1 Rule 13a-14(a)/15d-14(a) Certification

  I, Dawn Hammond, certify that:

  1. I have reviewed this annual report on Form 10-K, and all reports on
     Form 8-K containing distribution or servicing reports filed in
     respect of periods included in the year covered by this annual report,
     of Structured Asset Mortgage Investments II Inc. Mortgage
     Pass-Through Certificates, Series 2005-AR4 Trust;

  2. Based on my knowledge, the information in these reports, taken as a
     whole, does not contain any untrue statement of a material fact or
     omit to state a material fact necessary to make the statements made,
     in light of the circumstances under which such statements were made,
     not misleading as of the last day of the period covered by this
     annual report;

  3. Based on my knowledge, the distribution or servicing information
     required to be provided to the Trustee by the Servicer under the
     Pooling and Servicing or similar, agreement, for inclusion in these
     reports is included in these reports;

  4. I am responsible for reviewing the activities performed by the master
     servicer under the pooling and servicing, or similar, agreement, and
     based on upon my knowledge and the annual compliance review required
     under that agreement, and except as disclosed in the reports, the
     master servicer has fulfilled its obligations under that agreement;
     and

  5. The reports disclose all significant deficiencies relating to the
     servicer's compliance with the minimum servicing standards based upon
     the report provided by an independent public accountant, after
     conducting a review in compliance with the Uniform Single Attestation
     Program for Mortgage Bankers or similar procedure, as set forth in
     the pooling and servicing, or similar, agreement, that is included in
     these reports.

     In giving the certifications above, I have reasonably relied on
     information provided to me by the following unaffiliated parties:
     Countrywide Home Loans Inc. as Servicer.

     Date: March 22, 2006

     /s/ Dawn Hammond
     Signature

     Vice President
     Title


  EX-99.1
(logo)KPMG

KPMG LLP
Suite 2000
355 South Grand Avenue
Los Angeles, CA 90071-1568

Telephone 213 972 4000
Fax       213 622 1217
Internet  www.us.kpmg.com




Independent Accountants' Report


The Board of Directors
Countrywide Financial Corporation:

We have examined management's assertion, included in the accompanying Management
Assertion, that Countrywide Financial Corporation and subsidiaries, including
its wholly-owned subsidiary, Countrywide Home Loans, Inc. ("CHL"), and
Countrywide Home Loans Servicing, L.P., a wholly-owned subsidiary of CHL,
(collectively, the "Company") complied with the minimum servicing standards set
forth in the Mortgage Bankers Association of America's Uniform Single
Attestation Program for Mortgage Bankers (USAP) as of and for the year ended
December 31, 2005.  Management is responsible for the Company's compliance with
those minimum servicing standards.  Our responsibility is to express an opinion
on management's assertion about the Company's compliance based on our
examination.

Our examination was conducted in accordance with attestation standards
established by the American Institute of Certified Public Accountants and,
accordingly, included examining, on a test basis, evidence about the Company's
compliance with the minimum servicing standards specified above and performing
such other procedures as we considered necessary in the circumstances.  We
believe that our examination provides a reasonable basis for our opinion.  Our
examination does not provide a legal determination on the Company's compliance
with the minimum servicing standards.

In our opinion, management's assertion that Countrywide Financial Corporation
and subsidiaries, including its wholly-owned subsidiary, Countrywide Home Loans,
Inc. ("CHL"), and Countrywide Home Loans Servicing, L.P., a wholly-owned
subsidiary of CHL, complied with the aforementioned minimum servicing standards
as of and for the year ended December 31, 2005 is fairly stated, in all material
respects.


/s/ KPMG LLP


March 3, 2006





KPMG LLP, a U.S. limited liability partnership, is the U.S.
member firm of KPMG International, a Swiss cooperative.





  EX-99.2
(logo) Countrywide
       HOME LOANS


2900 MADERA ROAD
SIMI VALLEY, CALIFORNIA 93065-6298
(805) 955-1000

Management Assertion



March 3, 2005

As of and for the year ended December 31, 2005, Countrywide Financial
Corporation and subsidiaries, including its wholly-owned subsidiary, Countrywide
Home Loans, Inc. ("CHL"), and Countrywide Home Loans Servicing, L.P., a
wholly-owned subsidiary of CHL, (collectively, the "Company") have complied in
all material respects with the minimum servicing standards set forth in the
Mortgage Bankers Association of America's Uniform Single Attestation for
Mortgage Bankers.  As of and for this same period, the Company had in effect a
mortgage bankers' (fidelity) bond in the amount of $200 million and an errors
and omissions policy in the amount of $100 million and $130 million for the
period January 1, 2005 to August 1, 2005 and for the period from August 1, 2005
to December 31, 2005, respectively.



/s/ Steve Bailey
Steve Bailey
Senior Managing Director and
Chief Executive Officer, Loan Administration



/s/ Kevin Meyers
Kevin Meyers
Managing Director and Chief Financial Officer,
Loan Administration





  EX-99.3
(logo) Countrywide

Exhibit "A"

PORTFOLIO SERVICES
450 AMERICAN STREET, MS SV3-A
SIMI VALLEY, CALIFORNIA 93065
(800) 293-0780 TOLL FREE

Wells Fargo Bank, N.A.
9062 Old Annapolis Rd.
Columbia, MD 21045
Attention: Master Servicing

RE: Officer's Certificate

Dear Master Servicer:

The undersigned Officer certifies the following for the 2005 fiscal year:

(A) I have reviewed the activities and performance of the Servicer during the
    preceding fiscal year under the terms of the Servicing Agreement, Trust
    Agreement, Pooling and Servicing Agreement and/or Seller/Servicer Guide and
    to the best of these Officers' knowledge, the Servicer has fulfilled all of
    its duties, responsibilities or obligations under these Agreements
    throughout such year, or if there has been a default or failure of the
    servicer to perform any of such duties, responsibilities or obligations, a
    description of each default or failure and the nature and status thereof has
    been reported to Wells Fargo Bank, N.A.;

(B) I have confirmed that the Servicer is currently an approved FNMA or FHLMC
    servicer in good standing;

(C) I have confirmed that the Fidelity Bond, the Errors and Omissions Insurance
    Policy and any other bonds required under the terms of the Servicing
    Agreement, Trust Agreement, Pooling and Servicing Agreement and/or
    Seller/Servicer Guide are in full force and effect;

(D) All premiums for each Hazard Insurance Policy, Flood Insurance Policy (if
    applicable) and Primary Mortgage Insurance Policy (if applicable), with
    respect to each Mortgaged Property, have been paid and that all such
    insurance policies are in full force and effect;

(E) All real estate taxes, govermnental assessments and any other expenses
    accrued and due, that if not paid could result in a lien or encumbrance on
    any Mortgaged Property, have been paid, or if any such costs or expenses
    have not been paid with respect to any Mortgaged Property, the reason for
    the non-payment has been reported to Wells Fargo Bank, N.A.;

(F) All Custodial Accounts have been reconciled and are properly funded; and

(G) All annual reports of Foreclosure and Abandonment of Mortgage Property
    required per section 6050H, 6050J and 6050P of the Internal Revenue Code,
    respectively, have been prepared and filed.

Certified By:

/s/ Joseph M. Candelario
Officer

First Vice President
Title

March 15, 2006
Date

[PAGE]

                                                     fin_inst_ty
 issr_cde    dl_id             fin_inst_nme            p_desc
ABFC       2005-HE1     Countrywide Home Loans Inc.   Servicer
ABSC       2005-HE3     Countrywide Home Loans Inc.   Servicer
ABSC       2005-HE5     Countrywide Home Loans Inc.   Servicer
ACE        2005-HE4     Countrywide Home Loans Inc.   Servicer
ACE        2005-HE7     Countrywide Home Loans Inc.   Servicer
ARMT       2005-10      Countrywide Home Loans Inc.   Servicer
ARMT       2005-11      Countrywide Home Loans Inc.   Servicer
ARMT       2005-12      Countrywide Home Loans Inc.   Servicer
ARMT       2005-4       Countrywide Home Loans Inc.   Servicer
ARMT       2005-5       Countrywide Home Loans Inc.   Servicer
ARMT       2005-6A      Countrywide Home Loans Inc.   Servicer
ARMT       2005-7       Countrywide Home Loans Inc.   Servicer
ARMT       2005-8       Countrywide Home Loans Inc.   Servicer
BAF        2005-1       Countrywide Home Loans Inc.   Servicer
BAF        2005-A       Countrywide Home Loans Inc.   Servicer
BAF        2005-E       Countrywide Home Loans Inc.   Servicer
BAF        2005-F       Countrywide Home Loans Inc.   Servicer
BAF        2005-H       Countrywide Home Loans Inc.   Servicer
BSL        2005-10      Countrywide Home Loans Inc.   Servicer
BSL        2005-2       Countrywide Home Loans Inc.   Servicer
BSL        2005-4       Countrywide Home Loans Inc.   Servicer
BSL        2005-5       Countrywide Home Loans Inc.   Servicer
BSL        2005-7       Countrywide Home Loans Inc.   Servicer
BSL        2005-9       Countrywide Home Loans Inc.   Servicer
BST        2005-1       Countrywide Home Loans Inc.   Servicer
BST        2005-12      Countrywide Home Loans Inc.   Servicer
BST        2005-3       Countrywide Home Loans Inc.   Servicer
BST        2005-4       Countrywide Home Loans Inc.   Servicer
BST        2005-6       Countrywide Home Loans Inc.   Servicer
BST        2005-7       Countrywide Home Loans Inc.   Servicer
CSF        2005-1       Countrywide Home Loans Inc.   Servicer
CSF        2005-10      Countrywide Home Loans Inc.   Servicer
CSF        2005-11      Countrywide Home Loans Inc.   Servicer
CSF        2005-12      Countrywide Home Loans Inc.   Servicer
CSF        2005-2       Countrywide Home Loans Inc.   Servicer
CSF        2005-3       Countrywide Home Loans Inc.   Servicer
CSF        2005-4       Countrywide Home Loans Inc.   Servicer
CSF        2005-5       Countrywide Home Loans Inc.   Servicer
CSF        2005-6       Countrywide Home Loans Inc.   Servicer
CSF        2005-7       Countrywide Home Loans Inc.   Servicer
CSF        2005-8       Countrywide Home Loans Inc.   Servicer
CSF        2005-9       Countrywide Home Loans Inc.   Servicer
DAL        2005-AR2     Countrywide Home Loans Inc.   Servicer
GSA        2005-12      Countrywide Home Loans Inc.   Servicer
GSA        2005-15      Countrywide Home Loans Inc.   Servicer
GSA        2005-6       Countrywide Home Loans Inc.   Servicer
GSA        2005-7       Countrywide Home Loans Inc.   Servicer

[PAGE]

GSA        2005-9       Countrywide Home Loans Inc.   Servicer
GSP        2005-9F      Countrywide Home Loans Inc.   Servicer
GSP        2005-AR1     Countrywide Home Loans Inc.   Servicer
GSP        2005-AR2     Countrywide Home Loans Inc.   Servicer
GSP        2005-AR3     Countrywide Home Loans Inc.   Servicer
GSP        2005-AR4     Countrywide Home Loans Inc.   Servicer
GSP        2005-AR5     Countrywide Home Loans Inc.   Servicer
GSP        2005-AR7     Countrywide Home Loans Inc.   Servicer
HBV        2005-14      Countrywide Home Loans Inc.   Servicer
HBV        2005-4       Countrywide Home Loans Inc.   Servicer
HBV        2005-7       Countrywide Home Loans Inc.   Servicer
JPMMT      2005-A2      Countrywide Home Loans Inc.   Servicer
JPMMT      2005-A3      Countrywide Home Loans Inc.   Servicer
JPMMT      2005-A6      Countrywide Home Loans Inc.   Servicer
JPMMT      2005-S2      Countrywide Home Loans Inc.   Servicer
JPMMT      2005-S3      Countrywide Home Loans Inc.   Servicer
LMC        2005-1       Countrywide Home Loans Inc.   Servicer
MABS       2005-AB1     Countrywide Home Loans Inc.   Servicer
MAL        2005-1       Countrywide Home Loans Inc.   Servicer
MAL        2005-2       Countrywide Home Loans Inc.   Servicer
MAL        2005-3       Countrywide Home Loans Inc.   Servicer
MAL        2005-5       Countrywide Home Loans Inc.   Servicer
MAL        2005-6       Countrywide Home Loans Inc.   Servicer
MARM       2005-2       Countrywide Home Loans Inc.   Servicer
MARM       2005-6       Countrywide Home Loans Inc.   Servicer
MARM       2005-7       Countrywide Home Loans Inc.   Servicer
MARM       2005-8       Countrywide Home Loans Inc.   Servicer
MLM        2005-A01     Countrywide Home Loans Inc.   Servicer
MLM        2005-A04     Countrywide Home Loans Inc.   Servicer
MLM        2005-A07     Countrywide Home Loans Inc.   Servicer
MLM        2005-A09     Countrywide Home Loans Inc.   Servicer
MLM        2005-Al0     Countrywide Home Loans Inc.   Servicer
MSI        2005-HE3     Countrywide Home Loans Inc.   Servicer
MSI        2005-HE4     Countrywide Home Loans Inc.   Servicer
MSI        2005-HE5     Countrywide Home Loans Inc.   Servicer
MSI        2005-WM2     Countrywide Home Loans Inc.   Servicer
MSI        2005-WM3     Countrywide Home Loans Inc.   Servicer
MSI        2005-WM4     Countrywide Home Loans Inc.   Servicer
MSI        2005-WM5     Countrywide Home Loans Inc.   Servicer
MSI        2005-WM6     Countrywide Home Loans Inc.   Servicer
MSML       2005-5AR     Countrywide Home Loans Inc.   Servicer
MSML       2005-6AR     Countrywide Home Loans Inc.   Servicer
MSSTR      2005-1       Countrywide Home Loans Inc.   Servicer
MSSTR      2005-2       Countrywide Home Loans Inc.   Servicer
NHEL       2005-FM1     Countrywide Home Loans Inc.   Servicer
NHEL       2005-HE1     Countrywide Home Loans Inc.   Servicer
PPS        2005-WC2     Countrywide Home Loans Inc.   Servicer
PPS        2005-WC3     Countrywide Home Loans Inc.   Servicer
PPS        2005-WW1     Countrywide Home Loans Inc.   Servicer

[PAGE]

PRM        2005-4       Countrywide Home Loans Inc.   Servicer
SABR       2005-FR3     Countrywide Home Loans Inc.   Servicer
SABR       2005-FR4     Countrywide Home Loans Inc.   Servicer
SABR       2005-FR5     Countrywide Home Loans Inc.   Servicer
SABR       2005-HEl     Countrywide Home Loans Inc.   Servicer
SAIL       2005-1       Countrywide Home Loans Inc.   Servicer
SAM        2005-AR2     Countrywide Home Loans Inc.   Servicer
SAM        2005-AR4     Countrywide Home Loans Inc.   Servicer
SAM        2005-AR6     Countrywide Home Loans Inc.   Servicer
SAM        2005-AR8     Countrywide Home Loans Inc.   Servicer
SARM       2005-1       Countrywide Home Loans Inc.   Servicer
SARM       2005-12      Countrywide Home Loans Inc.   Servicer
SARM       2005-14      Countrywide Home Loans Inc.   Servicer
SARM       2005-15      Countrywide Home Loans Inc.   Servicer
SARM       2005-17      Countrywide Home Loans Inc.   Servicer
SARM       2005-18      Countrywide Home Loans Inc.   Servicer
SARM       2005-20      Countrywide Home Loans Inc.   Servicer
SARM       2005-21      Countrywide Home Loans Inc.   Servicer
SARM       2005-22      Countrywide Home Loans Inc.   Servicer
SARM       2005-23      Countrywide Home Loans Inc.   Servicer
SARM       2005-4       Countrywide Home Loans Inc.   Servicer
SARM       2005-7       Countrywide Home Loans Inc.   Servicer
THB        2005-3       Countrywide Home Loans Inc.   Servicer
THB        2005-4       Countrywide Home Loans Inc.   Servicer





  Ex-99.4

   Schedule of Year-To-Date Principal and Interest Distributions to
   Certificateholders


   <TABLE>

   Class                              Interest             Principal               Losses             Ending Balance
   
                       <c>                    <c>                  <c>                 <c>
   A-1                            8,215,386.07         65,596,362.83                 0.00             426,488,637.16
   A-2                            4,254,129.45         26,660,582.15                 0.00             173,339,417.85
   A-3                            2,032,801.47         15,329,834.73                 0.00              99,670,165.26
   A-4                              348,654.57          2,705,382.58                 0.00              17,589,617.43
   B-1                              100,127.70              7,726.81                 0.00               4,541,273.20
   B-2                               92,702.33              6,953.95                 0.00               4,087,046.05
   B-3                               56,767.75              3,862.56                 0.00               2,270,137.45
   B-4                              171,734.30             13,135.06                 0.00               7,719,864.95
   B-5                              143,840.93             12,362.20                 0.00               7,265,637.80
   B-6                              107,837.70              9,267.96                 0.00               5,447,056.74
   M-1                              250,328.56             23,178.70                 0.00              13,622,821.30
   M-2                              219,461.86             20,087.30                 0.00              11,805,912.70
   M-3                              136,593.34             12,362.20                 0.00               7,265,637.80
   M-4                              131,489.56             11,589.36                 0.00               6,811,410.65
   M-5                              114,448.76             10,043.65                 0.00               5,902,956.35
   M-6                              106,787.68              9,270.79                 0.00               5,448,729.20
   M-X                                    0.00                  0.00                 0.00              82,188,484.18
   R-1                                    0.00                 50.00                 0.00                       0.00
   R-2                                    0.00                 50.00                 0.00                       0.00
   R-3                                    0.00                 50.00                 0.00                       0.00
   X-1                            1,117,834.09                  0.00                 0.00             444,078,254.59
   X-2                              162,142.19                  0.00                 0.00             273,009,583.11
   </TABLE>