6 mo (mix fed but now about 80% bottle) been weaning for a few weeks wakes every night more or less three hours after going to bed (so about three and a half hours after last bottle) crying desperately. He downs 60ml milk (from a bigger bottle) then goes back to sleep. He never finishes his pre bed bottle though. Any ideas how to force feed (joke!) him an extra 60ml pre bed and prevent this wake up?