I've always been happy if I get 2 hours, but after reading this thread I changed my tune. Now I want nothing less then 2 1/2 hours! None of them can climb out of their playpen so that is where they will stay until at least 2:30. I have a new one whos 12 months old. He is a horrible napper! But today I decided, no matter what he does he is not getting lifted out of that play pen until 2:30. He woke up twice, put himself back to sleep both times and woke up finally at 2:35. It was nice.