My whole life I've thought that one day, when I found a partner who wanted to share a bed, I would have to find a very large bed to share.
I'm the best at sleeping. I would win every contest. I sleep through alarms- fire alarms. I sleep so soundly, and I move in my sleep. As a child, staying in hotels with family, I always got a bed to myself because of just how bad it was for anyone to share with me.
If someone HAD to share a bed with me, we always put pillows in between us in an attempt to keep my nighttime thrashing confined to my side of the bed. Of course, I have no memory of any such movement at all- but I don't see any reason my entire family would make it up.
When I was with A, and we would share a bed, I could never sleep well. I was never comfortable. He was too close, and I needed space to move around. I figured maybe because he was too strong and too heavy for me to physically move in my sleep, I was unable to actually sleep, since I was unable to move him.
My conclusion was that I just wasn't someone who was able to sleep close to another person.
I think I might have been entirely wrong.