Alfie has always drunk formula milk. He started on Aptamil 1, then Aptamil colic, then Aptamil follow on, and now this last week I've put him on to Aptamil 1 yr+. Since drinking this milk he has become a RUBBISH sleeper! Has anyone else experience this? He will wake at least once every hour during the night . At first I thought it was teething as he has just cut his molars but I can't see any more teeth looking ready to cut and he's not giving any other signs. Do you think it could be the milk? Should I try cows milk? Thanks in advance.