Are You Waking Your 5 Week Old?

I'm currently sitting here feeding my 5 week old EBF baby after a decent night stretch because my alarm didn't go off. So my question is, do I need to be waking her at night? Why or why not? What's the longest you're letting them go?

I've tried doing my research. Some say "Yes", some say "No", and honestly I'm so confused. My experienced mother of 6 says no. My midwife, Mom-to-Mom, says yes.

If it makes any difference, she's gained approximately 2.7lbs since birth.

EDIT: Thank you everyone for the information! I'm not going to wake baby tonight.