The Rocker Napper features gentle rocking movements and vibrations that can help soothe your baby and develop body sensation and control. Parents can control the level of stimulation by activating or deactivating the product’s various features. Quiet time alone is very important to your newborn baby's development. Let your baby enjoy the gentle rocking movement of the 3-in-1 Rocker Napper while playing with the rattling snail and flowery mirror. At 3-6 months, move the Rocker Napper's hanging electronic toy to the appropriate distance from your baby's palm, so that when they raise their hand they can hit the toy or, later, grasp it with ease.