When a baby is born, all the body parts are aligned, so there is no need to use a pillow. However, when the child approaches the third month, he or she gains enough strength to raise the head. At this age, the spine also starts bending forwards in preparation for the sitting milestone. Using a pillow at this age helps to maintain the bend psychologically. This ensures the baby remains comfortable without straining to sit up as the body demands. A baby pillow should have a height of at least 3cm and adjusted gradually as the baby develops. The length of the baby’s pillow should be as broad as the baby’s shoulder. This will ensure the baby gets the right support, with no strain on the body.http://www.siliconepillows.com/pillow/baby-silicone-pillow/