The moon first pillow guarantees maximum support to help you baby sleep comfortably. the air flow treated open-cell memory foam absorbs and distributes weight evenly. it also comes with a hypoallergenic fitted cover that is made using rayon from bamboo fibres, making it soft and gentle and keeping the pillow cool and comfortable. it is made with low density memory foam to delicately cradle the baby’s head and avoid any chances of flat head syndrome (result of a baby’s head resting on a firm surface for long hours).