A bed sheet holder—commonly known as a sheet suspender or fastener—is a specialized accessory designed to keep bedding taut and securely anchored to the mattress. These tools typically utilize elasticized nylon straps and heavy-duty tension clips to grip the edges of the sheet, preventing it from slipping, bunching, or popping off the corners during sleep. By creating a consistent pull across the underside of the bed, they maintain a smooth, hotel-style finish and eliminate the need for daily manual readjustments.