Hi Monica,
This is a great question and you are so smart to plan ahead!
There are typically busses running early enough to get you to your early morning reservations in the parks, but I would check with a Cast Member at your Resort the evening before your reservation to make sure.
Also, keep in mind that busses do not travel between Resort Hotels, so for your reservations that are located at other Disney Resort hotels, you'll either need to take the bus to Magic Kingdom park and then the Resort monorail over to your reservation or take a taxi. Check out the
Complimentary Resort Transportation information page for more details.
With early reservations early at another Resort hotel, I recommend taking a taxi if at all possible. A Cast Member at
Disney's Art of Animation Resort will be happy to assist you with this as well.
I hope this helps you plan, Monica. It sounds like your vacation days are going to be off to a delicious start!
Wishing you a pixie-dusted trip,
Andrea U,