G.B.
Truly, most kids do NOT get up at 5:30 to catch the bus anywhere. That's way early!
If I got up that early I'd put the kids to bed early too. She just can't do late nights until she gets in a school that doesn't start so early or that fixes the bus schedule. That's just crazy! She must start school at 7 or 7:30 to get on the bus that early.
If she's diagnosed with this disability then can she get some assistance through the school system for special needs. She can have oral homework or assistance in reading her homework, all sorts of assistance. I know people in college who got accommodations for learning issues like this.
I'd be telling her teachers to not send so much homework home too. She really doesn't need it.