Cally, we tried to substitute a bottle of water - he screamed so loud I thought the neighbours would call the police!

Ginger, unfortunately he seems to be allergic to sleep and if we left him to get sleepy on his own he would be up until at least 10pm every night. I am so glad that L's sleeping has improved so much for you though

We tried going back to the start and sitting in his room with him (thanks Fig) - first night he wriggled around a bit and went to sleep after about 20 minutes, the second night I won front row tickets to an hour long tantrum but tonight it only took 15 minutes. Guess we will keep on going with it and see what happens...