baby getting enough sleep?

Chelsie
Is this enough sleep? Bed time 8, usually asleep by 8:30 in her crib. Wake up around 6:00 or 6:30. She sleeps through the night. Most days 3-4 naps of 1/2 hr to 45 mins. I hear some babies sleeping 12 hrs at night and way longer naps and I'm wondering if she's not getting enough sleep?