I know they don’t need to say it every time or describe it but infants need to be breastfed every two hours. It’s very tedious and annoying sometimes but it explains why she has her baby with her all the time.
Maybe I don’t have a problem with it because I’m used to GRRM and his constant depiction breasts in his books and breastfeeding. But in this case Sarah is a mom and babies require a lot of attention and feed very frequently.