DS is 3.5 months and I've just resumed classes in Danish for 4 hours, 3 nights a week. There is also a fair bit of study expected in between classes as its an intensive course. But I think its manageable.

DH is looking after the baby on those nights.

We have been 'practising' for a few weeks leading up to the start of the course, so all 3 of us knew what we were in for. I would go out and study in a cafe for a couple of hours and DH would do the whole bedtime routine on his own, so when I had my first real class yesterday, it was an easy transition for all of us.