My daughter is not SN and will be 7 in December. She definitely needs to nap. I have been so grateful that she's been in a combo PreK/Kindergarten class for the past 2 years at the charter school we attend. Because of the PreK kids, they had a daily rest time where dd often fell asleep. If she had been in a regular kindergarten class, there would not have been that longer rest period.
I'm anticipating a bit of a rough start to first grade in a few weeks. Definitely making sure that bedtime is between 7:45-8:00pm.