REVOLVING CREDIT AGREEMENT Dated as of February 12, 2007 Among FOAMEX L.P., as a Borrower and Guarantor, FOAMEX INTERNATIONAL INC., FMXI, LLC, FOAMEX CANADA INC., FOAMEX LATIN AMERICA, INC., FOAMEX MEXICO, INC., FOAMEX ASIA, INC. and FOAMEX CARPET...