The Magic Mattress Lift is a spring assisted device that is placed between the mattress and the box spring. Its unique design expands up to 10 inches. This action effortlessly lifts and hold the corners of the mattress while you make the bed. You can now easily pull the fitted sheets or mattress covers over the corners of your bed using both hands. When finish, press down on the mattress and the Magic Mattress Lift collapses down to 1.5 inches.