Zed Light and Rocker RockitLight and vibration accessory for sleep. Does your baby sleep better in the car than in the crib? This device imitates the vibration of a car ride. Simply place it near your baby's feet in the crib and the soothing vibrations will spread across the mattress, promoting deep sleep. 6 soothing vibration modes Night light with 3 levels of red light Portable design: you can take it anywhere you want