Girls, who had a disrupted sleep schedule in our age group? Doesn't sl…

Girls, who had a disrupted sleep schedule in our age group? Doesn't sleep until 3-5 AM at night, and then sleeps soundly until around 1 PM, and then throughout the day in parts, like for a week already. I'm trying not to let her sleep too much after she eats, as soon as she does, she falls asleep. We went to a neurologist, they prescribed calming baths and elcar. Who has encountered this and how did they deal with it?