The first several months were tough getting her to sleep but she responded well to bouncing, shushing, and patting which still works most of the time except for the occasional 2 hour stretches that I think are due to being way overtired or overstimulated. However, most nights she's easily settled now with a hand on her the only problem is you can't take the hand away or she immediately starts crying again and if she falls asleep that way she's back up in an hour to do the same thing. I've been doing WIWO consistently for at least 5 or 6 days now and fairly regularly before that. With WIWO I do leave her crying for a bit but I guess your saying its just not as long as CIO?