chances of a cot death are reduced if a baby sleeps in your room, as you willl always be checking on him or her....in his or her room you wont be keeping an eye on her/him as regular as you will in your own room, thats what i find, this is based on my own personal opinion, my kids have always moved out of my room at the age of 2, i know thats a long time to have them in your bedroom, but i didnt want them to get ill or something and me not notice, being in the other room. Although many people do think its easier and better for their children to be in seperate rooms right from the start, its up to the individual to decide how their baby is getting on....but the baby is better in mummy and daddys bedroom for the first 6 months at least