My LO is 3 weeks old. I was told to feed every 2-3hours. But if baby sleep more then 3hours will you wake them up for feed or let them sleep till they cry for milk ?

That's what my confinement lady from PEMS told me too. Every 3 hours during the first 4 weeks must feed them every 3 hours. If sleeping, not longer than 4 hours. Cause Nb, they are growing. But some ppl beg to differ. They feel that baby sleeping don't wake them up, cause they are developing. But personally, I followed my CL advise.