A bed-mounted exercise system. The bed-mounted exercise system includes a platform removably securable to a bed via a plurality of straps and an exercise pad removably securable to the platform. The pad includes a lower surface including a plurality of attachment fasteners thereon. The platform includes an upper surface including a plurality of mating fasteners thereon. The pad is removably securable to the platform via engagement of the plurality of attachment fasteners with the plurality of mating fasteners. A plurality of strap apertures disposed on the platform are configured to receive either a first end or a second end of one of the plurality of straps therethrough. The platform can be positioned atop a mattress and secured to a bed frame thereunder via fasteners disposed on the plurality of straps. The pad can then be fastened to the platform, providing a comfortable yet stable surface on which to perform exercises.