I don't know. I tend to agree with RCW on this one. I have 2 kids of my own and I baby sit my nephews who are turning 1. Routines and sleepy clues work. Finding what is right for each baby works. With DD it was a little rocking, DS needed to work it out on his own, N1 needs quiet time, N2 does it alone like DS did. I needed and still need time to do other house stuff. I'm not about to spend all day rocking babies and refusing to vacuum because they don't sleep well.
High Priestess JessMess, follower of the Goddess of the Coiling Way and Confiscator of Concoctions in the Order of the Curly Crusaders