LO sleeps in her crib 99% of the time and we just took a mini-vacation this past weekend where we had to share a bed with her. She slept in the middle and practically did somersaults and flips in her sleep. I got kicked in the face, she rolled on top of me to sleep, slept upside down, horizontal, vertical, hands and arms spread out, and at one point, i even fell off the bed as she was inching too close - only to climb back on and sleep on the foot of the bed.
All 26inches of her took up most of the king side bed as DH and I barely managed to stay on.
She's a very active sleepy, rolling from one end to another all night long, sleeps on her face, her side, her back, and sometimes even tries to sleep in a yoga upward dog position against the towel (which we roll up to prevent from hitting her head against against the headboard) She does the same at home in the crib as you can see by the avatar.
Out of curiosity, does your LO do the same or just stay in one place the whole night.