The Baby Works Cloud 9 Head Support is specially crafted to support babies head by reducing pressure on cranium. It is perfect for use while at home in a bouncy seat or swing or while on the go in a stroller or car seat. The memory foam support is soft and comfortable and cradles baby's head meticulously. As part of Baby Works, the Cloud 9 Head Support comes with a hypoallergenic fitted pillow case, made using rayon from bamboo fibers, which is soft and gentle, keeping the pillow cool and comfortable.