Hello tallen01: Well... I don't know. Personally I think there's probably a fine line between something being a weird habit versus OCD. As a child I bit my fingernails. When I grew into my late teens, I managed to break myself of that habit. Then I discovered... hair pulling! I've been a hair puller ever since. I have lots of other odd little quirks that come-&-go as well.

By the way, I sleep with a pillow between my legs too. I can only sleep on my side... mostly my right side. For many years I've had low back problems & I began sleeping with a pillow between my legs in an effort to try to keep them in some sort of "natural" alignment. (I think I read about this being a good idea somewhere.) Anyway, now, if I don't have my pillow between my legs at night it just doesn't feel right.