If you really want to read this topic and still want a good nights sleep, i advice you not to read it.
Has any one woundered how we fall a sleep and found it strange how your brain does it.
Once when i was praying(im a christian) i woke up and instantly started praying without knowing i fell a sleep and only looking at the time i then saw i fell a sleep.
Even if i knew the answear i am still complexed on how your brain does it (well of course the answear is basicaly what happens in a WILD but your not con).
It some times keeps me awake at night. Plus i thought i blinked once but acturly i was sleeping but it seemed that i just blinked.
Even more plus is that you don't fully remeber that when you were thinking about it before you went to bed it you wake up only a ware of half the things you were thinking about before falling a sleep.