We stayed at PP about a year ago. Unfortunately, the pool was under renovation so I have no suggestions for that. However, my kids (then 5,6) spent much of our down time in the kids movie area. It is down the hall from the lobby and it looks like an indoor beach theme. They also have a mini arcade although that might be a little too big for your little one.
The only bad thing about this hotel was that they have a total of 3 elevators but our entire week visit it seemed one or two was out of order. This was extremely irritating especially when we had sleepy ones coming back from the park. The wait to get on the elevator was as long as some Disney rides. So one night we decided to forgo the line and just take the stairs, though great for the glutes, 9 story stair walk was not great for sleepy kids. Other than than hotel was great.
To park a car at the hotel during your stay is kind of steep also. For 5 days it was $80. Bonus, you don't have to pay to park at dl because the walk over is faster.