Aubrey slept yesterday from 6pm to 9pm then woke up to eat and take a bath. She was back asleep by…

Aubrey slept yesterday from 6pm to 9pm then woke up to eat and take a bath. She was back asleep by 10:30 and slept until 8am. She has slept on and off all day. She's happy when she's awake so I don't think she feels bad but why is she sleeping so much. She usually doesn't sleep much during the day 🤔