My DD is nearly 2 and has always been a poor sleeper unlike my DS. About 6 months ago she began waking up for comfort and I managed to stop that by refusing to take her out of her cot and just sitting in her room until she fell asleep. She then began sleeping through the night about 80% of the time instead of only 10% of the time. Now when she wakes it can take up to 2 hours for her to go back to sleep. She is trying but if, after 15 minutes, she hasn't dropped off she'll start with the 'mummy, mummy, mummy' until I tell her to go to sleep. She'll then try again and so it will continue for 2 hours. Any suggestions on what I can do to help her fall asleep again or is it a case of she'll grow out of it?