Bec, I have also read that @ 4 months the risk reduces: my old MCHN in Darwin told me that too.

That said, I don't think you can ever rest easy until they are at least a yearold.......

(Olivia is 20 months old and I still get nervous when she has a sleep in! And I still check on her through the night! And I lay awake most nights listening for Charlies breathing!) So I am just as much a worry wart!