Yes, "the 4 month regression" is a terrifying developmental phenomenon.
Until infants learn to roll over or safely turn their head to one side, they tend to be fussy during the first two weeks.
My baby is about 5 months old (I was born on June 22). This is brand new for him.
For a week, I woke up four or five times per night.
I slept softly, listening for gasping, and with a dim light on so I could keep an eye on him.
Immediately, I got up and either put my head down on his shoulder or turned it to the side till he got the idea.
Now he's feeling fine. Even though he has a dummy to flip with, I still find myself awake at least once every time he does.
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