Stay in the tower - you have access to the rooftop pool (very relaxing, best daytime food) and also to room service. The quiet pool is a great little getaway. Plenty of opportunities to relax. Based on your post - it sounds like you are going to pack up mid trip, go to a boring resort and spend the rest of the vacation wishing you were at TTR.
we're doing our 3rd split trip. Temptation is by far our favorite and we've been going there for 25 years now, dating back to the Blue Bay days. The party is like none other you'll see anywhere. However, I'm also a Mayan history buff so the 1st part of our trip will be in Playa due to the proximity of ruins, cenotes, Cozumel (another favorite of ours), and it helps the resort we stay at there is awesome and has swim out rooms but is most definitely PG compared to TTR. We're at the age that shit, 4 solid days of partying to end the vacation is awesome, plus we get to go home with some cultural stuff too. I know it sounds like the Geico commercial with the dude reading the signs, but you also have to know your limits! It'll take us 2 days to recover from the Boobs Cruise, which is exactly when we have to come back to reality!
Everyone has that problem at Temptation, you'll fit right in. I'd not split the trip. If you Do get to feeling it is a bit much for yet another day of Throttle to the Floor partying, drinking and shenanigans, you've got several built-in options. 1. Go down to the beach, it's way chill down there, and close enough to let you know with a bit of effort what's going on around the Sexy Pool. 2. Go hang around the Quiet Pool. It is quite quiet, so that works well. 3. Go into town, either shopping, or to the party zone for a different party type scene. 4. Last, do a day trip over to Isla Mujeres, rent a golf cart, and cruise around the island stopping where the spirit takes you.