The asymmetric unit of the title compound, C(13)H(18)N(2)O(3)S, contains two mol-ecules with similar conformations. In both mol-ecules, the cyclo-hexyl rings adopt chair conformations, with the attached N atom in an equatorial orientation and an intra-molecular N-H⋯O hydrogen bond generates an S(7) ring. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules and a C-H⋯O hydrogen bond is also observed. The crystal studied was a racemic twin.