SUPPLEMENT DATED DECEMBER 17, 2007

TO

PROSPECTUS DATED MAY 1, 2007

FOR COMPASS G

ISSUED BY SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)

SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT D

This supplement contains information about the MFS/ Sun Life Series Trust.

On or about January 1, 2008, the name of the MFS/ Sun Life Series Trust will be changed to MFS Variable Insurance Trust II.

In addition, all of the funds under this Series Trust will be renamed by replacing the word "Series" with "Portfolio."

Please retain this supplement with your prospectus for future reference.

      

        SLUS Compass G 12/07