3 month old always sleeps with head to same side? Is this a developmental concern or just a preference? I tend to carry her with my left arm so my right hand is a little more free. This means she's against my left shoulder and tends to look out that direction. But she twists her head just fine both directions when playing or diaper changing. When she falls asleep in crib her head is always facing the same direction. She seems to have a harder time falling asleep against my right shoulder.

Am I just being over concerned or do I need to work on evening things out.