My daughter has always been an awful sleeper! At just over two, she now settles in her cot and sleeps for two or three hours. She then wakes up crying and saying 'mummy bed' I take her into the bed but she will only settle on me. I then have to shuffle her off and she stays asleep in my bed (normally wakes once in the night demanding milk). Is this normal behaviour? I've never left her to cry or sleep trained her. I'm a single mother and work full time and just wonder if this is normal or if something medically could be wrong with her.