Hi
My LO is 12 weeks on sunday and has also backtracked a little. We don't DF so he wakes around 1am and was starting to go to about 6.45am without feed (although would often wake and fuss at 4 am). last 2 nights he has woekn and fussed at 4am for up to an hour before then screaming for food?

Difficult thing for us is that LO is not interested in 7.30am feed!!!!! I am thinking of reducing the 4am feed by an oz tonight and see waht happens........
I know this won't help you, but i guess it says we are all going through something similar - suspect a growth spurt!