How to explain the variations in risk of Sudden Infant Death Syndrom for the prone sleeping position The risk of SID in the prone position is greater if the infant is too warm, is ill, has heavy blankets, or a soft mattress: this represents an increase in adaptive challenges. Other risks are developmental and reflect the child's maturity:

In recent years, baby product shelves ,and even more so parenting forums, have filled with devices promising to monitor a newborn's breathing during sleep and to prevent what is still commonly called sudden infant death syndrome (SIDS), now renamed sudden unexpected infant death (SUID) in many countries.