Co-sleeping, or sleeping in the same bed as an infant, is associated with an increased risk of SIDS. While the exact mechanism is unknown, co-sleeping may lead to overheating of the infant or rebreathing of exhaled air from parents, putting stress on the infant. Additional risks include airway obstruction or the prone sleeping position, both of which can increase the infant's temperature and contribute to SIDS.

1. Co-sleeping and SIDS
Is co-sleeping a  Co-sleeping means increased risk of SIDS.
cause of SIDS?
 “Overlaying” blamed in past.
 How is unknown.
 Hypoxia due to rebreathing parents’ air, airway
obstruction, and thermal stress.
 Temperature is higher.
 Prone position also a cause.
 Proves temperature as direct cause.
 What is “overlaying?”
 Why does the prone position cause a higher temp.?
Summary:
The exact cause of how co-sleeping causes SIDS in unknown; however, it could be
attributed to many things such as an increase in temperature or hypoxia.