Take the tour ×  Anectodal. Feel free to shoot it down.  Walking
is an acquired skill; As far as I'm concerned exhaustion causes
disorientation. Even after waking up it sometimes takes a second
or so to get balanced.  How is it sleepwalkers don't stumble
around when walking?  share|improve this question Balance is
maintained by the cerebellum, not by any of the cortical areas
that are less active during sleep. Thus, there's no reason sleep
should affect your ability to balance. Being asleep doesn't mean
that you're fatigued. I wouldn't be surprised if a highly
fatigued person who was sleepwalking did have poor balance. – 
octern Nov 4 '12 at 20:30 In fact, repetitive actions like
riding a bike or playing the piano (when experienced) are also
stored in the cerebellum so should in theory be possible for
sleepwalkers to do :D –  Armatus Nov 4 '12 at 22:00 An
interesting question. When a person is asleep and dreaming, the
person's brain is fairly active, similar to the waking state
levels. The person is not exhau