DD has always been a good sleeper, she has been sleeping approx 8:30pm -7:30am with a feed at 11:30pm for the last 6+ weeks. Daytime naps are usually only contact naps but will occasionally do 30 minutes in her crib. She’s 16 weeks today.
The last week her naps have become a bit more of a struggle, then this morning she randomly woke up at 4:50am no and refused to go back to sleep until she had a bottle. Tonight she’s got herself absolutely hysterical about going in her cot and her be ended up holding her to sleep because she’s now cried to the point of getting over tired. Once she fell asleep I moved ever so slightly to put her in her crib and she’s hysterically cried again.
I know the 4 month sleep regression is a thing but does it really just happen over night and is there something I should be doing to help her/stop creating bad habits that may continue?