it really depends on you and your kids. We went in May and even though we could have sleep in a little bit longer - we always went early for RD to avoid the heat and crowds. Kids lasted about 3-4 hrs. by noon - we needed a break. lunch and heading back to the resort. I made the nap mandatory. yes, there were arguments for 5 min after that - both were sleeping. 90 min and we were heading back to the park around 5pm. if not - we went to the pool, movie on the beach, bonfire etc. but I made the nap mandatory. 5 min of them arguing vs 5 hrs of them being happy after it was worth it for me.