Early December is usually pretty quiet.

The nap tip works IF everything goes to plan, which it doesn't, and then you have a meltdown AND a delayed flight later in the day. I just don't want parents to be too fixated on getting their kids to sleep. Especially a child with sensory issues who might have difficulty nodding off in a strange place with a lot of people around.

Early morning can be very busy but I think it's more sane if 1. there are not a ton of low-cost and charters flying out of there and 2. You're not flying to an international connection point (i.e. JFK or MIA). Orlando is neither.