Just be aware that sometimes there's a waiting list, and if they won't take them after 12 months..........well, you get my drift! I resisted sleep school for ages, and went about 10 days before DS turned 1 I should have done it a bit earlier really, maybe about 10 months. But hindsight is a wonderful thing! I say that it can't hurt, you don't HAVE to do what they suggest. And it might just help