Car Seat Sleeping!
There seems to be much confusion over the recommendation that babies should not sleep in car seats. What this means is, don't use the car seat at home for baby's nap times, or take the seat out of the car, and leave baby in it. The danger lies in that the baby's head may slump forward to the chest, and cut off the airway. It can literally only take minutes for babies to stop breathing, which has sadly lead to death, in some instances. There have been positional asphyxiation incidences with other equipment too, such as chairs, swings, and even in slings when baby-wearing.
Is baby safe in the car seat in your vehicle? YES! The car seat sits at a different angle on it's base. However on long road trips, it is advisable to stop somewhere frequently and take baby out of seat for periods of time. The only safe sleeping environment at home for your baby, is a crib with a firm mattress, no bumpers, toys, blankets or pillows!