I will say this -- below a certain age (say, 5 or 6), there is certainly some good that comes with co-sleeping NOW AND AGAIN. I don't like it that our 3-year-old comes down every night, and we're trying to incent him not to, but in this day and age where everyone is frazzled all the time, a little peace and quiet and close physical bonding with your child cannot be seen as a bad thing.