We spend most of our time on our 2nd level, which has hard wood floors.
I'm kinda tired of my LO bumping her head and hurting herself on the wood.

With another baby on the way I'm wondering if we should have some carpet installed. What do you think?

We spent the last couple of days in a hotel with carpeted floors and LO has been lying on the floor (she never does this at home) and seems to really like it.