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 ?

If baby has jaundice, it is a must that u wake him up to drink - maximum is 4hr. But if it is just breast milk jaundice then it's ok to just wait for baby to cry. Also depends on ur little one if big or small drinker, and can drink how much at one go. As long as everyday got hit the milk volume quota or the wet nappy quota will do ya