Driving down the road your car's suspension reduces jiggles, creating a gentle vibration inside the car. And the uneven surface of the road changes the vibration - making it random. Ours is the only pad with a gentle, random vibration shown to increase healthy rhythmic breathing and relaxation in newborns. Better than a car ride, our pop-up box and pad create an infant safe sleep space you can put next to your bed. So stop driving, try Prapela, and get some rest.