How close is it to Naperville ill

There is a parking lot across the street in one of the Sandburg Village garages (public parking is available). I think it was $18 for 2 hours.

It’s about 45-60 minutes away depending on traffic.

It's only about 40 +/ - miles away. However, suggest you allow up to 90 minutes door to door due to traffic, parking (closest lot is about 3-4 blocks north), and the fact that it's a timed entry ticket, so arriving late is a problem.