Move the mattress away from the wall or any furniture to make it easier to maneuver the mattress. If you plan on putting a mattress pad over the mattress, remove the sheets and covers.
Ask one person to stand on each end of the mattress: one at the head of the bed and one at the foot of the bed. Lift the mattress up and out of the frame, and rotate it around so that the end that was originally at the head of the bed is now at the foot of the bed. Lower the mattress onto the box spring, making sure it is centered and securely in place.
Place the mattress pad over the mattress; this can help reduce wear and tear on the pillowtop. You can purchase mattress pads at stores that sell mattresses. Wrap each end securely under the corners of the mattress. Replace the sheets and covers.
Try to sleep on a different side of the bed than you usually do from time to time. This will help minimize the occurrence of dents and creases in one side of the mattress.