A few nights ago, my husband and I went to check on our daughter in her crib and noticed that she had turned 180 degrees from the position I had set her down in. Her feet were toward the head of the bed, and her head at its foot. A short while later, my husband check on her again and saw that she had 180’d again, right back to her starting position. Based on other babies I’ve known in my lifetime, I assume that moving this much during the night is normal for babies and small children, hence the need for beds with rails. I can even remember moving that much myself when I was a kid, waking up midway down the bed or rolled up against the side. It makes me wonder, at what point in our lives do we stop that. Middle school? As late as high school? College?