My 2 month old will nap(approximately 30-45mins) in her room in the crib when we are home. She will fuss for a few minutes but will fall asleep on her own.

However, at night she just cries. I do the same thing but may add a bath in the evening and nurse longer. She cries and doesn’t settle until 30 mins or so.

What may be the reason for this?
Should I let her cry or just get her?

I get her and nurse each time after she sleeps for a couple of hours.

I also bring her in our room if she doesn’t settle after her first middle of the night feeding.

Any suggestions?