Your baby should sleep on a hard mattress. Some experts recommend, in order to avoid suffocation of the child in bed, do not cover the child with a down duvet, and for the first year, do not put pillows or stuffed animals in the bed. Sometimes infants die while sleeping for no apparent reason, which is known as Sudden Infant Death Syndrome (ang. SIDS, Sudden Infant Death Syndrome). This syndrome occurs in 1. years of age u 1 on 2000 babies, more often in boys than in girls, and more often in the colder months of the year. It is believed, that putting your baby to sleep on its back or on its side reduces the risk of sudden death.