Yes normal.
How old is your baby now?
How many ml baby should drink?
This is what I did. Especially night time.
You can wake by touching the jawline area , ears or mouth .
Once finished baby will sleep back till next feed.
I had e same problem back then. I have to keep calling baby while opened my baby’s mouth and put in a little by little And closed it. Repeat cycle. Takes 20 mins to finished
Rae