My son is 11 weeks and for the last week hasn't slept more than an hour and a half at a time. Prior to this, he would go to sleep around 10 or 11 and not wake until 2 or 3, sometimes even 4 a.m. But as of late, he will still fall asleep around 10 but then he's up at midnight, 130, 300, etc. As I'm typing this, he fell back asleep at 325 a.m. & woke at exactly 430.
He is EBF so I'm exhausted & have no clue what I'm doing wrong. He always wakes up to nurse so the only thing I can think of is switching to formula so I know he's eating enough. Any advice?!