Dd was probably 15 hrs old.
She was Constantly comfort sucking.
I had her latched on for 2 hrs of and on, and after VERY sore nipples decided enough was enough.
The nurses and midwives did their usual 'did you know this, do you know that' but honestly, I felt I knew my bub best. And as soon as I popped the dummy in, she seemed so much more content.