What are signs/symptoms of sleep walking?

so for the past couple of days my family members own been getting their pillows stolen, and my older bro had to go and get up at 5 in the morning and saw either me or MY TWIN BROTHER just lay on the ground with our eyes open infront of the bathroom, we dont know who it is, but we also found the front door unlocked so one of us went outside.
d need of sleep be a sign of sleep walking?
cuzz I get plenty of sleep, my brother doesnt
or could be something to do with my diet? I drink a lil too much soda.
help please!
Answers:    I use to sleepwalk to or I still do not sure haha.

Related Questions: