My mums friend, Lou, had this really massive house, it was quite old about 200-300 years old. Lou's sister was around with her 3 month baby boy. They put the baby to bed and went to bed themselves. Lou slept in her bedroom with her husband and her siter slept in the spare room on her own- her husband was away on buisness at the time. At around 2-2.30 in the morning Lou woke up because she needed some water, she woke up her sister aswell because the door banged. Lou went down to get the water and her sister stayed in bed. The sister had a baby monitor in her room and then it went of with the baby crying. She got up ready to go to the baby, but then she heard someone singing 'Twinkle, twinkle little star...' She quikly ran to the babys room but the door was closed still, the window was closed, Lous husband was still in bed and Lou had just come up from downstairs.