To provide a device for preventing thrusting aside of a quilt which prevents cold and getting chilled while asleep from occurring by preventing thrusting aside of a quilt and prevents a quilt from slipping down from the bed.

The quilt (or blanket, towelket) is fixed by a stopper like clip (8) or the like which can stand pull by trust aside. When the quit is splashed, the power is divided to upper portion without becoming narrow and a sense of resistance by a roller. When the trust returns to a former position, the quilt also returns to a former position.