I get that you realize the moment you actually fall asleep, but before that—from the time you lie down until you drift off—you’re in some sort of position, right? My two most comfortable sleeping positions are on my side (either left or right) and lying on my back; I can fall asleep in any of them, but while I’m lying there trying to sleep, I keep shifting positions until I finally doze off. What about you?

I don't understand those people who sleep on their back 😛 I'm always a side sleeper.

I sleep with one of my arms under my pillow.

I usually change positions while sleeping. I sleep in my side and sometimes I sleep in a straight manner. Obviously I can't really remember in what position I am while I am asleep. However, I really like side position with my legs up. I also like to out my legs up while in a straight position.

fetal position, knees tucked up to chest

Some times i sleep sideways, then there are days i sleep with my belle pressing the bed while one hand is under the pillow.