How long does your under 18month child nap for?

My son is 13 months old and sleeps very very well. He is able to relax himself in his crib and falls asleep on his own. He typically falls asleep 9:30 or 10:30 and naps for about 2.5 hours and then again, 1.5-2 hours in the afternoon. I’m very lucky. But sometimes he wakes up too close to bed time from his nap. When did you guys drop a nap? And long does your child nap for during the whole day?