Will your child sleep places?
When my DS was 9 months old, 21 months old & 32 months old, we took him to WDW. He would sleep anywhere. He would fall asleep on our shoulders or in his strollers. He took more naps then usual during the day in WDW, which was fine with us. And then he would be awake at night for parades, etc.
We always went back to the hotel in the middle of the day for a couple of hours. He would nap a long time & then be completely refreshed. If he slept for 4 hours (much more then normal), we let him, because he would be happy & awake at night.
We are not schedule parents, so there was not set nap time or bedtime for our DS. He slept when he was tired. And it worked great for us.
Yes, there were some nights we would be back to the hotel before the parades & fireworks & that was just fine. But he also made it & was happy to see things at night, a lot of our evenings.