SNOO is the smartest bassinet! SNOO is also the first and only baby bed approved by the FDA for its ability to keep babies sleeping on their backs—the number one safe sleep recommendation from all public health authorities. Developed by world-renowned pediatrician Dr. Harvey Karp, creator of the celebrated book/video, The Happiest Baby on the Block, and MIT-trained engineers, SNOO boosts sleep for babies 0 to 6 months with the soothing and responsive rhythms they enjoyed in the womb. When a baby fusses, SNOO “hears” the crying and chooses the just-right amount of shushing and motion to help lull the baby back to sleep. Happiest Baby’s simple-to-use App lets parents modify the experience to select the responses that work best for their baby. SNOO comes with 100% organic cotton SNOO Sacks. These patented “5-second swaddles” hook securely into SNOO, ensuring that your little one remains safely on their back all sleep long.