A ghost has been blamed for keeping a woman awake at night.

Camera

Camera

Iris Alamo has been struggling to sleep at her home in Chicago, America, and to get to the bottom of her insomnia she set up a camera in her bedroom to find out what was disturbing her at night.

The woman posted the video to Facebook, which has since been reported on The Daily Star website, with the caption: ''Took almost a year but finally caught so this is probably why I can't sleep at night.''

It is only when Iris watches the footage back she discovered the bedroom door had flown open all by itself without any explanation.

However, after a few moments an eerie figure can be seen across the other side of the room and appears to float across. As the mysterious being glides towards the door, the bed covers are pulled off of Iris and as it goes out of shot, a bang can be heard which ultimately wakes her.

The clip also shows Iris sitting upright in bed putting the light on, which then switches itself off again after.