I still breastfeed my baby 8 months, but this book I think I'll stop. I bought it when the baby was 4 months because he did fall asleep and that within tétais several times at night. And smooth day after day he learned to sleep alone without crying, now in 5 minutes he fell asleep in bed to nap 2 1 to 2 hours and 1 nap of 45 minutes and finally for a night of 11h. I've never let her cry: D