Hey Tigercin:
So glad to hear about your daughter's accomplishment.
One thing to try for your daughter is some guided meditation. There are a lot of free meditations on You Tube. Some of them are specifically to bring on sleep. You can get a little free download tool, download from You Tube and then load onto some electronic device for use without an Internet connection. Also, limit your daughters use of devices with bright screens before bedtime. Too much time on electronic devices can bring on insomnia for many people.