So my ovia app said most babies Isabelle's age are usually down to just a nap in the morning and a…

So my ovia app said most babies Isabelle's age are usually down to just a nap in the morning and a nap in the afternoon, but Isabelle sleeps all the time! That's half of her day. She wakes up between 4 and 6, eats, goes back to bed after an hour, then wakes up between 8 and 10. After that, she'll stay up for an hour, then nap, over and over until about 8 and then she's down for good except for the occasional 1am feeding.

Am I doing something wrong? Is she just a sleepy baby? I can't keep her up once she gets ready for a nap because she just screams and throws a fit until you put her down.