I did Controlled Crying at 9 or 10months to break her habit of waking and being rocked/fed/cuddled to sleep. She STTN within 3 nights but naps took longer - probably over a week? I had previously tried it about 7months but wasn't ready to stick to it so it didn't work.
She still wakes if she is poorly or overtired or teething but after a cuddle, painkillers etc. she's fine and puts herself back to sleep after being tucked in. The best thing is she's no longer grumpy, overtired and screaming throughout the day! She doesn't sleep very well anywhere except in the dark and quiet in her own cot but she's always been like that since birth and don't think she'll ever grow out of it. So I usually plan our day round naps/bedtime to make sure she's happy and well-rested.
She actually asks for bed now. She gets her comfort teddy and comes up on my knee and rubs her eyes. And if we have visitors close to nap time she says bye bye to them and keeps hiding in her room cos she wants a nap

Such a difference, I can barely remember the sleepless blur. I remember losing count of night wakings around the 17th waking some nights!! xxx