Why Do You Need A Memory Foam Car Pillow In Your Car? Get over the uncomfortable car head restraints your automaker gave you. We're not saying every car has uncomfortable head restraints, but most cars within the affordability range do. There is always a gap between your neck and the seating surface, our car travel pillow, neck and head support will maintain correct posture and relieve neck pain and shoulder pressure. Specification: Suitable time: suitable for all seasons Name: pure memory foam