Why give it so much thought? Book NSA upon boarding. Decide how you feel as the night goes. Dinner almost always takes a little longer first night but even with that, you should be done with a comfortable cushion to make the show. The PJ party is fun and if you’re tired, just go for a short time, maybe an hour and go to bed. Or if you’re tired, skip it. It’s not like they are going to re-schedule it or be waiting for you