Generally speaking, it is better for newborns to sleep in a hard bed. Because newborns sleep in hard beds, the force of the newborn’s lower back is more symmetrical, and does not cause the newborn’s spine to be bent. This is due to the relatively young age of newborns, the physiological curvature of the newborn spine has not yet formed. At this time, sleeping on a hard bed is more in line with the spinal characteristics of newborns. If the newborn sleeps in a soft bed too early, it will cause the newborn’s spine to be squeezed. The newborn’s spine will have different degrees of deformation, which is not conducive to the development of the newborn’s spine. And if the bed is too soft, it may even cause the risk of suffocation of the newborn. To sum up, it is more suitable for newborns to sleep in a hard bed.