L.T.
hi J.-
We've been having the same problem with our son, who just turned 10 months old and we've had his new car seat for about a month. My son's head seems to shift mostly to one side, and then a little forward. I'm not sure if this will help in your situation, but on our last car trip, my husband and I kind of rolled up a shirt and propped his head up straight, after he had fallen asleep. Hope that this helps, or if you hear of anything better, please let me know. Good luck