he Nod Off Headboard Gap Filler Pillow in Double size (135 × 20 × 15 cm) is a UK-made triangular wedge designed to fill the space between your mattress and headboard. It features high-density foam wrapped in a soft, breathable cover for supportive yet comfortable use. Ideal for preventing pillows, remotes, and other items from falling into the gap, it also offers gentle back support when sitting up in bed. The hypoallergenic materials make it suitable for sensitive sleepers.