Newborn and sleep

Sabrina

My 5 day old little girl was waking up every 2 hours durning the night for feedings. This morning I just had to wake her up when I got up because she never fussed for 4 hours! Scared the crap out of me. Is that normal? Is that too long for a breastfed baby? Should I start alarms to make sure she doesn’t go longer than 3?

Thank you!