The present invention is to provide a TiO2\u2014SiO2 glass whose coefficient of linear thermal expansion at the time of irradiating with high EUV energy light becomes substantially zero when used as an optical member of an exposure tool for EUVL. The bracket is configured to couple to the electrical component and includes a base member that has a first side with a substantially planar shape. An LED inlet is formed at the other end of the periphery. The voltage summing buffer generates an output voltage based on the upper voltage and the lower differential voltage, such that the output voltage corresponds to the digital signal including the upper bits and the lower bits. If used in combination with a second pillow of the present invention, the head of the baby can rest within the head-receiving contour of the first pillow, while the bottle to feed the baby can rest within the bottle-receiving contour of the second pillow; thus assisting with proper digestion during feeding by elevating the head above the stomach level.