An inflatable mattress having an inflated torso support pad, a first leg extending out from a first portion of the inflated torso support pad, and a second leg spaced from the first leg and extending out from a second portion of the inflated torso support pad. The first leg and the second leg define a gap between them to allow the legs to be spread apart for toileting or cleaning of the patient, or deflated and rolled upon themselves so as to provide easy access to the patient during clinical procedures. A method is provided for positioning a patient with the inflatable mattress.