Adjusting your baby's sleeping position helps prevent stomach acid from leaking into the esophagus. The specially designed sponge with a perforated structure allows your baby to breathe comfortably when lying face down. This product does not have a therapeutic feature., is used as an aid. The product has a sponge odor, the odor will disappear after it is removed from the package. It does not contain carcinogenic substances. The removable cover can be washed in the washing machine. It can be used as a safe sleeping pillow thanks to its adjustable side barrier. The waist belt Velcro fastens your baby to the pillow and prevents it from slipping. The Velcro length on the back of the belt helps you lay your baby on the right and left. You can support your baby from the back with the pillow and lay him in the position he is comfortable in. There is a special fabric on the sides that provides air flow