Thanks LovelyLily,
We had two good nights (when LO only woke once) and then last night was a bit of a terror again (awake at 11pm - before DF, 1.30, 2.30, 5.30 (BF), 6.15, woke at 7.00am. I'm really confused as he doesn't really seem to need anything when he wakes. I go in, put his dummy in (which he generally spits back out) and he goes back to sleep. When I feed him he doesn't really seem to take very much. He did have a bit of a cough last night (and today) which has been waking him a little so maybe this was the answer last night. It is really annoying because you feel like you have actually solved the issue (two good nights) and then it all goes to pot again.
Mamat, hope you had another alright night last night.