After Hours Exercise

For as long as I can remember, I've had problems with sleepwalking. I don't really know how often I do it, or what I always do when I'm walking around. It freaks me out because I have no memory of it the next day. Just people telling me that I was walking around talking in the middle of the night.
I have no memories of ever sleepwalking, but when I was younger, I would wake up laying with my head at the foot of the bed, and my feet on my pillow all the time. Since I was on the top bunk of a bunk bed, it wasn't really an easy accomplishment. My brother told me that I once got dressed for school in the middle of the night and went downstairs to eat breakfast once in the middle of the night. Things like that made me uneasy, but the last few years have really freaked me out.
I may have written about this before, but there are mornings where I wake up sore and bruised with no explanation. I sometimes will have grass and mud on my feet too. It bothers me to know that I go outside when I'm sleeping.
Last night, I apparently had a conversation with my mom. She said I told her that I was working all day today. She was a little surprised to see me when she came home on lunch. I was more surprised to find out I had been talking with her in the hallway at 5 this morning.
Does anyone know any cures for sleepwalking? I know mine is brought on by stress. Since I can't really escape stress, I'm willing to try about anything. Let me know.