Baby Falls On Head What Do You Do To Prevent Your Baby's Head From Falling Forward While Sleeping In Their Car Seat?

What do you do to prevent your baby's head from falling forward while sleeping in their car seat? - baby falls on head

I recently put my 10 months on the back seat of a convertible, still back, of course, but when she is asleep, his head falls forward. It used to be safe and comfortable in her car seat covers, but 19 pounds and 28 inches long, which is really too big for him. My friend said neck pillows do not work. What do you suggest?