As a person who keeps incredibly detailed and methodical dream journals, I always sleep with a pen and notebook in my bed with me. Because the materials are always right there, I occasionally write in my sleep the way some people talk in their sleep. I always love it when this happens because it's like getting to see the footprints of my own subconscious left behind for my waking self to find. Fortunately I've kept many of these writings composed by my sleeping self. Some of them are remarkably coherent. Just for kicks here are some of the better ones I've found upon waking (either in my dream journal or scrawled across the back of my hand):
"One redhead is particular..."
"What is the color of the mix of the air we mix to walk in?"
"Blue velvet, Jutland talk"
"I could have the first channeled rocket party"
"I love romanticism -----> solitary 'divices'"
"Fire donuts are essential"
"walk hour 'burgalers'"
"It was a matter of being hit by the right drop of water"
"It never serves your mouth to lose your bet"
"Let's get rid of all this orange"
"She's dead, and she's only made four bucks"
"Saber's a sqwinky!"
"The most dangerous heretics remain..."
"I roll beetle eyes"