Do you snore, toss & turn, steal covers, sleepwalk or talk? Maybe something more... unusual?
One of my brothers sleepwalked (is that how you say it? or is it sleptwalked? whatever) so severely that my parents had to get extra locks for the door, and install them too high for him to reach, or he'd leave the house! My son talks in his sleep; when he was tiny (like 8, 9 months old) we'd walk in & hear him "moo"ing!
For myself, I'm told I snore, though not as bad as the rest of my family. Its been so long since I shared a bed with anyone but a kid suffering from bad dreams that I'm not sure about the blanket hog or moving around parts. But I DO have one odd habit, and its passed down from my Mom, apparently: I sleep-strip. That's right, I take my clothes off while I sleep. My Mom beat the crap out of my Dad for being a pervert early in their relationship - she didn't know that she was taking her own clothes off as she slept, and thought that Dad was messing with her!