Teething

For moms who have done sleep training, I was told to not let a nap go longer than two hours which very rarely happens so I don't have to worry about this. But my son is teething (just starting to break the surface) and I'm wondering what moms do in this case. He seems to want more sleep. He slept 12 hours straight last night (which has only happened once) and he's wanting to nap for over two hours each time. Do you try to keep your little one on a schedule or let them sleep (might just need more sleep). Curious to know what others do. Thanks!!