Thanks for the suggestion dude! 
Here are some excerpts from www.crystalhealing.co.nz
"There have been many instances of people who have astral travelled
involuntarily, many of them without reason.
A boy, woke up and got out of bed during the night. Whilst walking
along a hallway he became "aware that something was amiss." On
turning around and looking back toward the way he had come he saw
what appeared to be a thin cord of light leading from him back to
his bedroom. Naturally concerned, he followed the cord back to his
bedroom only to discover that he was still asleep in his bed. He
had no recollection of how he returned to his physical body.
The above is a typical example of an out of body experience during
sleep, which, happens to everyone. The one unsual aspect of this
case is that the boy woke up whilst he was astral traveling and
became alarmed. Most cases of involuntary astral travel occur when
the person is under great emotional stress or is extremely
overtired. It is also known that involuntary astral travel occurs
in dreams or in near death experiences. Near death experiences are
the most common form of involuntary astral travel.
About nine percent of people who have a near death experience
involuntarily leave their bodies in this way. This is always
experienced immediately after the accident or whatever caused them
to come close to death. The person is suddenly aware that he or she
is floating above or close to the physical body and that his or her
consciousness is inside the invisible astral body, rather than
inside the physical body. Many people find it to be a very
pleasant, exhillarating feeling."
