My husband & 2 of my kids have struggled with this on and off (all 5 of us are diagnosed ADHD – various subtypes). Intuniv is a non-stimulant that helps with the “fight or flight” response. It’s helped with the aggression & irritability in 2 of my kids & my husband.
It made me feel terrible!p- sluggish & foggy. My provider suggested yesterday that I try it again, but the short-acting version to see if that’s better (Tenex is the brand name).
Your daughter is 15- old enough to understand how her behavior impacts herself & others and old enough to weigh the benefits of making a change to have a better quality of life over struggling.
You might want to make confirm the reason she struggles to wake up isn’t because she’s up all night on her phone or other devices. That’s been an issue in our home. Good luck to you!