Patent ID: 7162756

Claim:
Bed cover ( 1 ) comprising isolated or quilted chambers ( 3 ) running parallel to one edge ( 2 ) of the bed cover and filled with a heat-insulating material, whereby neighboring ones of the separate chambers ( 3 ) are attached by sewing to a flat cloth layer ( 4 ) forming one of two surfaces of the bed cover ( 1 ), so that when the flat cloth layer ( 4 ) is bent or curved in a sense of an arching of the chambers ( 3 ), neighboring boundaries or walls ( 5 ) of the chambers ( 3 ) can be or are moved apart from one another, and upon a bend or curvature in an opposite direction the boundaries or walls ( 5 ) of the filled chambers ( 3 ) come into contact with one another, wherein in a spread, non-arched position of the bed cover ( 1 ), the neighboring boundaries or walls ( 5 ) of the chambers ( 3 ) are in contact with one another for roughly half of the outward extent ( 5 a ) thereof from the cloth layer and diverge or run away from one another for the further portion of the outward extent ( 5 b ).