The safest way for an in fant to sleep is on his back For your childs safety and health. All Mee Mee mattress set with mosquito net is carefully made to the highest safety standards. Designed to prevent baby from Mosquito bites and at the same to provide safe and comfortable environment for baby. Provides a safe and comfortable environment for baby to sleep Prevents your baby mosquito attack and bites Made from 100% high quality cotton Soft.