A patient-support sling is at least partially disposable in a recessed area of the mattress, the sling being tiltably supported by a frame and carrying a waste receptacle. The sling has an aperture and at least one opening, the opening being larger in area than a bedsore. The sling is configured to enable selective relocation of the opening, thereby enabling an accommodation of bed sores for reducing incidence and severity thereof. The receptacle is removably attachable to the pelvic support member and disposable in part below the aperture for receiving eliminated waste of the user.