The Nod Off Headboard Gap Filler Pillow in Small Double size (120 × 20 × 15 cm) is a triangular wedge pillow designed to close the space between your mattress and headboard. Made in the UK, it features firm supportive foam with a soft, breathable cover for lasting comfort and functionality. It prevents pillows, phones, and other items from slipping into the gap while also supporting better sitting posture in bed.