If you like your tiramisu a little crunchy, I suggest adding an extra layer of savoiardi not dipped. You should place that layer on top of the second layer of yogurt, right before your second layer of dipped savoiardi. That way, you'll get a crunch in the middle. Also, consider using less yogurt if you like a drier tiramisu.
Keyword cofee, Italian, pudding, tiramisu