Have you ever met such phenomenon: after a hard day at you feel very tired, home tumble into bed. But sleep till half brain, suddenly woke family talking, audible but numbness could move limbs, wanted to shout to also not shout out. Actually this is your own soul and body separation performance, don't want to someone you pat waked up or, or you can such vegetable similar "sleep" over, don't think this is a nightmare.