The Sims 3 Generations expansion pack added a bunch of new interactions and some new content for different life stages. One object that I will almost always add to my sim houses from this pack is the rocking chair. Teens and older sims can rock and nap in the chair, as you might expect, but there’s another interaction that I really like, “rock with baby.”
This interaction helps fulfill social needs for the two sims that are rocking together, but if the baby being rocked is very low on energy, the baby might fall asleep in the older sim’s embrace and replenish some of that energy too.
I have one last tip with the rocking chair, at least for now… Wait until the parent sims have the want to buy a rocking chair pop up in their wants list, then buy the chair to get a few more lifetime happiness points for your sims. In the families that I’ve played, this usually occurs somewhere near the baby’s birth, so you won’t have to wait very long.