To ensure a sound sleep by forming a comforter stopper for a bed that can be unerringly securely fitted to a hem corner of the comforter without requiring time and trouble, and apply it mainly to the prevention of the hem corner from displacing and improve the insulating effect of the hem.

The comforter has a suspension ring 1 made up of a stop ring 10 made up of the hooking shaft portion 10a of a hook, linear vertical shaft portions 10b and 10c extending from both ends of the hooking shaft portion and a linear shaft base portion 10d extending between the ends of vertical shaft portions, and a pressing rod 11 stretched between the axes of the vertical shaft portions by supporting the axes of the vertical shaft portions by slide cylinders 11a and 11b at both ends. The hem corner c1 of the comforter C is passed through the space between the hooking shaft portion and the pressing rod from the lower side of the hooking shaft portion, and passed through the space between the shaft base portion and the pressing rod, striding over the rod, and the hem corner of the comforter is pinched by the shaft base portion and the pressing rod, and tucked into under the hem by the shaft base portion and the pressing rod by reversing the entire ring, and the hook 2 of a connecting belt 3 tucked into the lower side of the bed is hooked onto the faced downward hooking shaft portion and fixed.