Abstract: Devices, apparatus, systems and methods for keeping bottom sheets kept in place about mattresses with a cross pattern of elastic bands placed under a mattress having ends with clips. The clips can clamp to outer edges of the bottom sheet, with the elastic bands also able to additionally keep bottom edges of top sheets and/or bottom edges of blankets in place. The clip ends can be selected from at least one of alligator clips, suspender clips, clamps, and the like.