I am expecting my second baby in December and want to move my oldest into a "big bed" with just a barrier (the clip on ones you can buy), so the new baby goes into the cot bed and I don;t have to buy another cot bed. However, my oldest will have only just turned two and is used to his cot bed and I'm a bit worried this is all too soon and it will end in disaster. He's a good sleeper at the moment. Can anyone let me have any advice on the right age to move a child to a big bed and any other tips on this? Thanks